Search Fund Investor Agreements: Two-Step Capital Structure and Step-Up Mechanics

The traditional search fund model is a structured path through which an individual searcher, typically a recent MBA graduate or early-career professional, raises capital from a group of investors to fund a focused search for a single private business to acquire and operate. The legal architecture of that capital structure has evolved over decades of practice through Stanford's Graduate School of Business and the broader search fund community into a recognizable set of agreements, economic terms, and governance conventions. Those conventions are not mandated by statute and they are not uniform across all transactions, but they form a baseline from which most search fund deals are negotiated.

This sub-article is part of the Search Fund and Independent Sponsor Legal Guide. It covers the full legal mechanics of traditional search fund investor agreements: the two-step capital structure from initial search capital raise through acquisition capital deployment, the private placement memorandum and subscription agreement governing search capital, the step-up multiple and its economic logic, acquisition capital pro rata rights, searcher vesting tranches and acceleration provisions, non-compete and exclusivity obligations during the search period, investor protective rights before a deal closes, the deal acceptance and LOI review process, preferred equity terms and warrant structures at acquisition closing, the searcher employment agreement, and post-closing board composition and major decision governance.

Acquisition Stars advises searchers, search fund investors, and acquisition targets on search fund transaction structuring, investor agreement negotiation, and closing mechanics. Nothing in this article constitutes legal advice for any specific transaction.

The Traditional Search Fund Two-Step Model

The traditional search fund model, sometimes called the Stanford model after the institution that documented and popularized it, structures the path from searcher formation to business acquisition in two distinct capital raises separated in time by the search period itself. This two-step architecture reflects the fundamental uncertainty at the center of the search fund structure: the searcher does not know at the time of the initial capital raise which business will be acquired, at what price, or in what industry, and investors are committing capital to a process rather than to a defined asset.

In the first step, the searcher approaches a group of investors, typically 10 to 20 individuals with experience in search fund investing, and raises search capital in amounts that aggregate to enough to fund the searcher's salary and operating costs during the search period. Each investor makes a commitment that is both an investment in the search phase and a reservation of the right to participate in the acquisition capital raise on preferential terms if and when an acquisition closes. The search capital is not a loan and is not returned if no acquisition occurs. It is at-risk capital compensated by the step-up benefit at conversion.

In the second step, when the searcher has identified a target business, negotiated a purchase price, and is prepared to close, the acquisition capital raise draws primarily from the same investor group that funded the search. Each search capital investor has a right of first refusal to invest in the acquisition capital at their pro rata share. Investors who exercise this right receive credit for their search capital investment at the step-up multiple, meaning their search dollars convert to acquisition equity at 1.5 times face value. New investors may be admitted to fill the acquisition capital if search investors decline to exercise their full pro rata rights, but they typically participate at the standard acquisition capital price without the step-up benefit.

Search Capital: Purpose, Typical Deployment, and Investor Profile

Search capital serves a specific and limited purpose: funding the operational costs of the search process itself. The search period typically runs 18 to 24 months, though some searches extend further and some complete earlier. During this period, the searcher draws a salary set at a level appropriate to sustain the searcher's full-time commitment to the search, typically below market for the searcher's prior compensation but meaningful enough to permit complete focus on deal sourcing and evaluation. Search capital also funds travel costs for deal sourcing, due diligence expenses for targets in advanced evaluation, legal and accounting costs associated with LOI negotiation and preliminary diligence, and general operating costs including office space, databases, and support services.

Total search capital raises in the traditional model typically range from $400,000 to $600,000 for a single-searcher fund, with some variation based on the searcher's target deal size, geographic focus, and anticipated diligence costs. A searcher targeting larger businesses or conducting searches in high-cost markets may raise at the upper end of that range. A focused search in a defined niche where sourcing costs are predictable may require less. The amount raised does not directly affect the acquisition price range, since acquisition capital is a separate raise, but it signals to investors something about the searcher's assessment of the search duration and diligence intensity required for the targeted deal profile.

Search fund investors are a distinct community. They are predominantly individuals who have prior operating, search fund, or private equity experience and who participate in multiple search fund investments as a portfolio strategy. Institutional fund-of-funds focused on search funds exist but are less common than individual investors. The average search fund has between 10 and 20 investors, with individual commitments typically ranging from $25,000 to $75,000 per investor. This relatively small commitment size allows investors to build diversified portfolios across many searchers, managing the binary risk of any individual search failing to close through diversification.

Search Capital PPM and Subscription Agreement

The legal instruments governing the search capital raise are the private placement memorandum and the subscription agreement. The PPM is the disclosure document: it describes the search fund model, the searcher's background and qualifications, the intended search parameters including target business characteristics and deal size range, the economic terms of the search capital including the step-up multiple and pro rata rights, the risk factors associated with the investment, and the legal structure of the entity through which the search is conducted. The PPM is not a formal prospectus and the offering is not registered with the SEC, but it serves the disclosure function that a prospectus would serve in a registered offering.

The offering is structured as an exempt offering under Regulation D, most commonly under Rule 506(b), which permits sales to up to 35 sophisticated non-accredited investors in addition to an unlimited number of accredited investors, provided no general solicitation is used. In practice, search fund investors are virtually always accredited investors and the offering is conducted through direct, pre-existing relationships rather than any form of general solicitation. The subscription agreement is the contract through which each investor commits their search capital, confirms accredited investor status, makes representations about investment intent, and acknowledges the risk of loss.

The subscription agreement also documents the economic terms that will govern the investor's participation in the acquisition phase, because the step-up benefit and pro rata rights are created at the time of the search capital raise, not at the time of the acquisition. The subscription agreement must therefore clearly articulate how the step-up is calculated, what triggers the conversion of search capital to acquisition equity, how the pro rata right is measured, the deadline within which an investor must exercise the pro rata right after deal terms are presented, and what happens to search capital investors who decline to exercise their pro rata right. These provisions are the source of the most significant disputes in search fund transactions and must be drafted with precision.

Units, Per-Investor Commitment, and Allocation

Search capital is typically structured as units in a limited liability company rather than as shares in a corporation, because the LLC structure provides flexibility in allocating economics without triggering the corporate law complexity associated with preferred stock issuances in a C-corporation. Each investor purchases a defined number of units at a fixed price per unit, with the aggregate unit purchase price constituting the investor's search capital commitment. The unit price is set to allow clean allocation of the step-up benefit: at a 1.5x step-up, an investor holding units with a $50,000 aggregate purchase price receives a $75,000 credit toward acquisition equity.

The allocation of units among investors follows from the amount each investor commits. The LLC operating agreement for the search fund entity specifies how units convert to acquisition equity, how pro rata rights are calculated in relation to total units outstanding, and how the conversion mechanism operates when some investors elect to exercise their pro rata rights and others decline. The operating agreement must also address what happens to the units held by investors who do not exercise their pro rata rights: in most structures, declining investors retain their units but those units convert at a less favorable ratio, or the step-up benefit is forfeited and the search capital is treated as a base credit at face value rather than the stepped-up amount.

Per-investor commitment levels are typically negotiated between the searcher and each investor individually, within a range defined by the total capital target. The searcher has some interest in having a larger number of smaller investors to broaden the network and maximize the pool of investors who may contribute expertise and deal introductions during the search. Investors have differing preferences: some prefer smaller commitments across more searchers for diversification purposes, while others prefer to make a larger commitment to a smaller number of searchers in whom they have higher conviction. The searcher does not typically set a hard minimum commitment, but commitments below a threshold that allows the investor to participate meaningfully in the acquisition capital raise may not be economically significant.

The Step-Up Multiple on Conversion to Acquisition Capital

The step-up multiple is the defining economic feature of the search fund investor relationship and the primary reason investors are willing to commit capital to a search with no defined acquisition target. At the traditional 1.5x multiple, each dollar of search capital converts to $1.50 of acquisition equity credit at the time the investor exercises their pro rata right. This means that a search investor who committed $50,000 during the search phase receives $75,000 of acquisition equity at the same per-share price as new investors in the acquisition round. Compared to new acquisition investors who receive $1.00 of equity for each dollar committed, the search investor receives a 50 percent premium for having borne the search period risk.

The 1.5x multiple has been the market standard in traditional search funds for an extended period and is widely accepted by both searchers and experienced search fund investors. Some variation exists: deals with longer-than-typical search periods, higher search costs, or more difficult deal environments may negotiate modestly higher step-ups, while searchers with exceptional backgrounds or a very focused search thesis may encounter investor groups willing to accept the standard 1.5x. A meaningful deviation from 1.5x in either direction signals either unusual risk characteristics or unusual negotiating dynamics and should be scrutinized by both sides.

The step-up is applied at the time of the acquisition capital raise, not at the time of any subsequent exit. If the acquired business is sold five years after closing for three times the invested equity, the step-up multiple does not compound or carry through to the exit. Its function is simply to reduce the effective price at which the search investor acquires acquisition equity, which then participates in the same economic structure as all other acquisition equity. The acquisition equity itself, typically structured as preferred equity with a liquidation preference, pref dividend, and potential participation, governs the investor's ultimate economic return from the operating business.

Acquisition Capital: Right of First Refusal and Pro Rata Mechanics

The right of first refusal to participate in the acquisition capital raise is the second core benefit of search capital investment, alongside the step-up. Each search investor holds a pro rata right calculated as their share of total search capital units outstanding relative to the total units issued in the search phase. If a search investor holds units representing 10 percent of total search capital, that investor has the right to fund 10 percent of the acquisition equity capital raise. This pro rata right is contractual, not statutory, and its scope, exercise mechanics, and consequences of non-exercise are defined in the subscription agreement or the LLC operating agreement.

The exercise period for the pro rata right is typically short, reflecting the operational pressure of closing an acquisition on a defined timeline. When the searcher presents deal terms to the investor group, investors typically have 10 to 14 days to review the investment thesis, the proposed acquisition terms, the projected financial model, and the acquisition capital structure, and to notify the searcher of their intent to exercise. An investor who fails to respond within the exercise period is treated as having declined, and their pro rata allocation is available for reallocation to other investors or to new investors.

Over-subscription mechanics must be addressed where all investors exercise their full pro rata rights and the total committed exceeds the acquisition capital target. Most subscription agreements give the searcher discretion to accept over-subscription from existing investors, pro-rate the over-subscribed amount among exercising investors, or decline over-subscription and close the round at the target amount. Under-subscription occurs when some investors decline and others are unwilling or unable to fill the gap. In that case, the searcher may admit new investors to fill the shortfall, adjust the total acquisition capital structure, or, in extreme cases, reassess whether the transaction can be financed on acceptable terms.

Searcher Vesting Tranches: Time, Performance, and Trigger Events

The searcher's equity in the acquired business is the central economic incentive for undertaking the search process, and the structure of that equity grant reflects the competing interests of the searcher and the investors who bear the majority of the acquisition capital at risk. A searcher who receives fully vested equity at closing has no contractual incentive to remain with the business through the value-creation period that investors are underwriting. An investor who imposes conditions on the searcher's equity that are unattainable or disproportionately harsh will find it difficult to attract capable searchers. The vesting structure that has emerged as market convention balances these interests through three distinct tranches.

Time-based vesting is the foundational tranche. A defined percentage of the searcher's total equity grant vests ratably over a three to four year period from the date of closing, conditioned on the searcher's continued employment with the acquired business. Typical time vesting schedules run over 48 months with a one-year cliff, meaning no equity vests in the first 12 months and a proportional catch-up vests at the end of month 12, with the remainder vesting monthly or quarterly thereafter. The time tranche reflects investor confidence that operational continuity during the integration and early operating period is itself a significant source of value, independent of measured financial performance.

Performance-based vesting links a second tranche to the achievement of financial milestones defined in the equity documentation or employment agreement. Common performance metrics include EBITDA at a specified level, revenue above a threshold, customer retention at or above a defined rate, or debt reduction to a target level. The milestones are set at the time of closing based on the acquisition investment thesis and the projected operating plan. Performance equity that is not earned by the end of the measurement period is typically forfeited, not carried forward. Trigger-based vesting covers a final tranche that vests upon defined liquidity events, most commonly a sale of the business, a recapitalization distributing proceeds to investors, or an initial public offering. The trigger tranche ensures that even a searcher whose tenure ends before the full time schedule is completed retains meaningful participation in a successful exit.

Searcher Non-Compete and Exclusivity During the Search Period

A searcher who raises capital from investors under a search fund structure is making an implicit commitment to dedicate full-time effort to sourcing and evaluating acquisition opportunities within the parameters described in the PPM. The legal instruments governing the search period formalize this commitment through exclusivity and non-compete provisions. During the search period, the searcher is typically prohibited from engaging in any other business activity, employment, or investment that could divert attention from the search or create a conflict with the searcher's obligation to present deal opportunities to the investor group.

The exclusivity obligation means that the searcher cannot bring deal opportunities to outside investors or pursue an acquisition outside the search fund structure without the consent of the existing investor group. If the searcher sources a business that falls within the target parameters described in the PPM, that opportunity belongs to the search fund and must be presented to the existing investors through the deal acceptance process. The searcher cannot selectively share deal opportunities with individual investors outside the fund structure or retain the opportunity for a personal acquisition funded through separate capital. This obligation protects investors from the adverse selection risk of a searcher keeping attractive deals and presenting only marginal opportunities to the fund.

Non-compete provisions applicable during the search period typically prohibit the searcher from competing with any business in the target industry or size range that the fund is actively pursuing, from soliciting any acquisition target or business contact for purposes other than the search fund, and from using confidential information obtained through the search process for personal benefit. These provisions are narrower than post-closing non-competes, which are discussed in the context of the employment agreement, because their function is to protect the search process rather than to protect a specific acquired business. Enforceability is assessed under applicable state law using standard non-compete analysis: geographic and temporal scope, reasonableness of the restricted activity, and adequacy of the consideration supporting the restriction.

Investor Protective Rights During the Search Phase

Investors who commit capital to a search fund are funding a process over which they have limited direct control. The searcher selects which businesses to pursue, conducts the due diligence, negotiates the deal terms, and operates the fund day-to-day. To manage this governance gap, the subscription agreement and LLC operating agreement confer a set of protective rights on search capital investors that constrain the searcher's discretion and maintain investor visibility into the search process.

Information rights during the search period typically include monthly or quarterly reporting on search activity, pipeline status, cash expenditures, and any material developments. Some investor groups require a more formal quarterly investor update that covers the searcher's assessment of the current deal pipeline, any LOIs in process, any significant diligence findings, and the projected runway of the remaining search capital. These reporting requirements are not merely informational: they serve a monitoring function that allows investors to assess whether the search is progressing appropriately and to raise concerns before the search capital is exhausted.

Restrictions on new commitments during the search period prohibit the searcher from entering agreements that would bind the search fund entity or create obligations that survive a deal failure. These restrictions typically cover employment agreements with personnel other than the searcher, office leases above a defined duration or cost, vendor contracts above a threshold amount, and any agreement that would survive the termination of the search fund without investor consent. The prohibition on new commitments reflects investors' concern that a searcher who is not finding deals may attempt to build infrastructure or expand the search team in ways that consume capital without advancing the primary objective of closing an acquisition.

Deal Acceptance Process: Minimum and Maximum Deal Size, Industry Exclusions, LOI Review

The deal acceptance process is the formal mechanism through which the investor group reviews a proposed acquisition before the searcher proceeds to closing. The PPM defines the parameters within which the searcher has general authority to pursue transactions: the minimum and maximum enterprise value or EBITDA of the target business, the permitted industries or the excluded industries, the geographic scope of the search, and the structural requirements for the acquisition such as the requirement that it be a controlling acquisition rather than a minority investment. A target business that falls outside these parameters requires investor group approval before the searcher may proceed.

LOI review is the first formal investor engagement with a specific deal. When the searcher executes a letter of intent to acquire a specific business, the LOI and the searcher's investment thesis are typically circulated to all search capital investors simultaneously. The purpose of this review is not investor approval of the LOI itself, since the LOI is typically non-binding, but rather an early signal to investors of the proposed deal terms so that investors can begin their own assessment of whether they will exercise their pro rata rights in the acquisition capital raise. Some investor agreements give the investor group a formal review period before the LOI is executed, with the right to raise objections to transactions outside the stated parameters.

Industry exclusions may be defined either as permitted industries in which the searcher has stated expertise, or as excluded industries that the investor group is unwilling to fund. Common exclusions include highly regulated industries such as healthcare, financial services, and defense contracting, cyclical industries with commodity exposure, businesses with significant technology obsolescence risk, and businesses below a minimum profitability threshold. A searcher who sources an attractive business in an excluded industry must either seek investor consent to pursue it outside the stated parameters, bring it to the group as an exception, or pass on the opportunity. The exclusion provisions protect investors from a searcher pivoting away from the thesis that motivated the initial investment.

Acquisition Closing Mechanics: Preferred Equity Terms, Pref Dividend, Common Equity, and Warrants

When the searcher is prepared to close on an acquisition, the acquisition capital is structured as preferred equity in the entity that will hold the acquired business, typically a newly formed holding company LLC or C-corporation. The preferred equity carries an economic structure that places investors ahead of the searcher's common equity in the distribution waterfall while providing the searcher with meaningful upside in a successful outcome. The preferred equity terms are typically negotiated between the searcher and the lead investor or investor committee at the time the deal terms are finalized, with the balance of the investor group receiving the same terms on a take-it-or-leave-it basis through the pro rata exercise process.

The preferred liquidation preference is set at the aggregate acquisition capital contributed by investors, including the step-up credit applied to converting search capital. In a sale or liquidation of the business, preferred holders receive their liquidation preference and accrued preferred dividend before any proceeds flow to the common equity. The preferred dividend, typically cumulative and set in the range of 6 to 8 percent annually, accrues on the preferred liquidation preference from the date of closing. This accruing dividend functions as a minimum return on the preferred investment before the common equity begins to participate. In a sale at a high multiple of invested equity, the accrued preferred dividend represents a small fraction of total proceeds and is economically minor. In a sale at or near invested equity, the accrued preferred dividend is the difference between a return of capital and a loss.

Participating preferred structures, in which preferred holders receive their liquidation preference and then participate in remaining proceeds as if converted to common equity, are used in some search fund transactions as an alternative to non-participating preferred with a conversion right. Warrants issued to acquisition capital investors alongside the preferred equity provide additional upside through the right to purchase additional common equity at a defined price, typically the acquisition capital price, for a defined period. Warrant structures are more common in transactions where the investor group and searcher cannot agree on the equity split at closing, as the warrants provide investors with additional upside optionality without reducing the searcher's initial equity grant.

Searcher Employment Agreement at Closing and Post-Closing Governance

The searcher employment agreement executed at acquisition closing governs the searcher's role as the CEO of the acquired operating business. The employment agreement is a separate instrument from the equity documentation and from the operating agreement of the holding entity, though all three are negotiated in parallel as part of the closing package. The employment agreement covers: base salary at a level calibrated to the acquired business's cash flow, a performance bonus structure tied to defined financial metrics consistent with the acquisition investment thesis, the scope of the CEO role and reporting structure, expense reimbursement policies, benefits, and the equity vesting schedule referenced in the equity documentation.

Termination provisions in the searcher employment agreement are among the most heavily negotiated terms, because they govern the economic outcome for the searcher in the event the investor-controlled board decides to replace the CEO. A termination for cause provision typically provides for forfeiture of unvested equity and no severance, while a termination without cause provision typically provides for defined severance, acceleration of a tranche of unvested equity, and a COBRA continuation payment. The definitions of cause and without cause are material: a broad definition of cause that includes performance-based grounds gives investors the ability to effectuate a financially adverse outcome for the searcher without triggering the without-cause protections. Searchers and their counsel should negotiate cause definitions that require material misconduct, dishonesty, or legal violations rather than subjective performance assessments.

Post-closing governance places the board of the holding entity in the central authority position for significant business decisions. The board composition described in the FAQ section above, with an investor majority, the searcher as one board seat, and an independent director, reflects the preferred equity's controlling economic position. Beyond ordinary board decisions, the operating agreement of the holding entity typically specifies a category of major decisions requiring supermajority or unanimous board approval, or requiring separate investor consent outside the board process entirely. These major decisions commonly include annual operating plan approval, acquisitions and divestitures above a defined threshold, capital expenditures above a stated level, debt incurrence, executive compensation above approved levels, and any sale, merger, or recapitalization of the business. The governance structure is designed to preserve investor oversight over the decisions most likely to affect capital recovery while giving the searcher operational authority within the approved plan.

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