Due Diligence Attorney • Boston, Massachusetts

Due Diligence Attorney in Boston

By Alex Lubyansky · Managing Partner

Last updated May 21, 2026

What you do not know about a target company can cost you everything. Our Boston due diligence attorneys conduct rigorous legal due diligence for business acquisitions across Biotech, Healthcare, Technology, identifying hidden risks and liabilities so you can make informed decisions and negotiate from a position of strength.

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Selective M&A Practice

Personal Attention

Senior Counsel on Every Deal

Talk to Alex About Your Boston Transaction

Share the basics. Alex reviews every inquiry personally.

What We Do

Alex Lubyansky handles acquisition due diligence law work for buyers and sellers in Boston and across the country. Here is what that looks like:

Comprehensive legal due diligence for acquisitions
Contract review and assignment analysis
Litigation and regulatory exposure assessment
Intellectual property and proprietary rights evaluation
Employee and benefit plan compliance review
Real estate lease and environmental liability analysis
Corporate governance and organizational document review
Due diligence findings report with risk-ranked recommendations

Who We Serve

We work best with people who know what they want and are ready to move:

Buyers under LOI who need legal due diligence completed on a deadline
Private equity firms requiring institutional-quality diligence reports
Search fund operators conducting diligence on their first acquisition
Corporate development teams acquiring companies in regulated industries
Independent sponsors who need diligence to satisfy lender requirements
Family offices evaluating operating company investments

See If Your Deal Is a Fit

Tell us what you are working on. We respond within one business day.

Our Process

A structured, methodical approach to acquisition due diligence law

Diligence Planning

We create a customized due diligence checklist and request list based on the target company's industry, size, and deal structure, then coordinate document collection with the seller.

Document Review & Analysis

Our team reviews every material contract, corporate record, litigation file, and regulatory filing in the data room, flagging risks that could affect valuation or deal terms.

Risk Identification

We identify and categorize risks by severity, including potential liabilities, contract issues, compliance gaps, and operational exposures that require attention before closing.

Findings Report & Recommendations

Managing Partner Alex Lubyansky delivers a clear, actionable findings report with risk-ranked issues and specific recommendations for how to address each one in the purchase agreement.

Deal Term Negotiation Support

We translate diligence findings into negotiation leverage, drafting specific representations, warranties, indemnities, and closing conditions that protect you from identified risks.

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What Happens After You Submit

We don't take every matter. Here is what happens when you reach out.

Personal Review (Within 24 Hours)

Alex reviews your transaction details personally. No intake coordinators, no junior associates screening your submission.

Fit Assessment

We evaluate whether your deal aligns with our practice. Not every matter is a fit, and we will tell you directly if it is not.

Initial Conversation

If there is alignment, Alex schedules a direct call to discuss your transaction, timeline, and objectives.

Clear Engagement Terms

Before any work begins, you receive a written engagement letter with defined scope, timeline, and fee structure. No surprises.

Request Your Boston Engagement Assessment

Alex Lubyansky handles every acquisition due diligence law engagement personally.

15+ years of M&A experience. Nationwide. One attorney on every deal.

Request Engagement Assessment

We review every transaction inquiry within one business day.

Questions to Ask Any M&A Attorney Before Hiring

Use these before you call any firm, including ours.

1. "Who will actually handle my transaction?"

At many firms, a partner sells the work and a junior associate does it. Ask for the name of the attorney who will draft and negotiate your documents.

2. "How many M&A transactions has the lead attorney closed in the past 12 months?"

Volume indicates current, active deal experience, not just credentials from years ago.

3. "What is your experience with my deal size and industry?"

A $500K SBA acquisition and a $50M PE deal require different skill sets. Make sure the attorney has handled transactions similar to yours.

4. "Will you coordinate with my CPA, financial advisor, and broker?"

M&A transactions require a team. Your attorney should work with your other advisors, not in a silo.

5. "How do you handle post-closing disputes?"

Reps, warranties, and indemnification claims surface months after closing. Ask whether the firm handles post-closing litigation or refers it out.

6. "What is your fee structure, and what drives cost?"

Hourly, flat fee, or hybrid. Ask what factors increase legal costs so there are no surprises.

Frequently Asked Questions

Common questions from Boston clients

What does a due diligence attorney do in an acquisition?

A due diligence attorney investigates the legal health of a target company before you close the deal. This includes reviewing contracts, litigation history, regulatory compliance, intellectual property, employee matters, and corporate governance. At Acquisition Stars, we go beyond checklists to give you a clear, strategic picture of what you are actually buying.

How long does legal due diligence take?

Legal due diligence typically takes 3 to 6 weeks depending on the size and complexity of the target company. Acquisition Stars is structured for speed, and Managing Partner Alex Lubyansky personally oversees every diligence engagement to ensure we meet your deal timeline without sacrificing thoroughness.

What risks does due diligence uncover?

Common findings include undisclosed liabilities, contracts that do not survive a change of control, pending or threatened litigation, regulatory non-compliance, intellectual property ownership gaps, employee classification issues, and environmental exposures. Any of these can significantly affect valuation or kill a deal entirely.

What happens if due diligence uncovers problems?

Diligence findings give you negotiation leverage. Depending on the severity, you can negotiate a purchase price reduction, require the seller to fix the issue before closing, add specific indemnification protections to the purchase agreement, or walk away from the deal if the risks are too significant.

Why not just use my general business attorney for due diligence?

Acquisition due diligence requires specialized M&A experience. A general business attorney may not know which risks matter most in the context of a transaction or how to translate findings into protective deal terms. Acquisition Stars has 15+ years of exclusive M&A experience, which means we know exactly where to look and what to do with what we find.

What are the Massachusetts tax considerations for transaction due diligence?

Massachusetts imposes a flat 8% corporate excise tax on net income, plus a non-income measure (either net worth or tangible property). The state recently enacted a 4% surtax on personal income over $1 million (the "Fair Share Amendment"), which affects high-income sellers and pass-through entity owners.

What can I expect during an initial consultation in Boston?

During your confidential initial consultation in Boston, we'll discuss your acquisition due diligence law needs, review your current situation, assess potential challenges specific to Massachusetts, and outline a clear path forward. We'll explain our process, answer your questions, and determine if we're the right fit for your needs.

Do you work with companies outside of Boston?

Yes, we represent clients nationwide while maintaining a strong presence in Boston. Our managing partner handles acquisition due diligence law matters across all 50 states, coordinating with local counsel where state-specific requirements apply.

Need Specific Guidance?

Submit your transaction details for a preliminary assessment by our managing partner

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Ready to Discuss Your Boston Deal?

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The Boston M&A Market

Boston is the global epicenter of biotech and life sciences M&A, with Kendall Square and the Route 128 corridor housing the densest concentration of biotech companies outside San Francisco. Beyond life sciences, the region drives significant deal activity in financial technology, education technology, and defense contracting. The region's deep research university ecosystem (MIT, Harvard, Tufts) produces a steady stream of spinoff companies ripe for acquisition.

Top M&A Sectors in Boston

Biotech & Pharma
Financial Technology
Education Technology
Healthcare IT
Defense & Cybersecurity

Deal Environment

Boston's biotech-heavy deal market means acquirers often face complex IP due diligence involving university licenses, clinical trial data, and FDA regulatory considerations. Competition from large pharma strategic acquirers can push valuations higher for promising targets.

Why Acquire in Boston

Boston's concentration of world-class research institutions and highly educated workforce creates a self-reinforcing ecosystem where acquired companies can access talent, partnerships, and capital unavailable in other markets.

Massachusetts Legal Considerations

Massachusetts enacted the Noncompetition Agreement Act in 2018, limiting non-competes to 12 months and requiring garden leave pay - buyers must evaluate existing employee agreements during due diligence as many pre-2018 agreements may now be unenforceable.

Why Boston Clients Work With Us

We specialize in biotech and life sciences securities transactions, understanding the unique regulatory and scientific complexities of this sector.

Local Market Context

Boston M&A Market

Boston-Cambridge-Newton, MA-NH MSA · MSA population 4.9M

MSA Population (2024)

4.9M

U.S. Census Bureau

Top Industry Concentration

1 life sciences and biotechnology
2 technology and software
3 higher education and research

Boston is one of the two leading life sciences and biotechnology M&A markets in the United States, alongside the San Francisco Bay Area. The Kendall Square Cambridge corridor is among the world's densest concentrations of biotech and pharmaceutical R&D. Large pharma buyers regularly acquire Boston-area biotech companies in strategic platform acquisitions. Higher education and financial services add additional M&A dimensions to the market.

Major Boston Employers and Deal Anchors

Mass General Brigham
Pfizer (research hub)
Moderna
Biogen
Fidelity Investments
Raytheon Technologies

Transit and Logistics

Logan International Airport serves the metro with significant international connectivity. The Port of Boston handles breakbulk and specialty cargo. The MBTA regional rail serves the dense professional services workforce.

Recent Boston Deal Signal (2024-2025)

Biotech M&A in the Boston-Cambridge corridor remained highly active through 2024, with multiple large-cap pharma buyers completing acquisitions of clinical-stage companies valued between $1 billion and $10 billion. Novo Nordisk's acquisition of Cardior Pharmaceuticals and Eli Lilly's continued platform acquisitions exemplified the pattern.

Source (accessed 2026-04-27)

Local Regulatory Notes for Acquisition Due Diligence Law

Massachusetts Securities Division is active in enforcement. Cambridge and Boston impose no unusual M&A-specific local rules, but Massachusetts has a non-compete statute that affects deal structure for talent-dependent transactions.

Massachusetts Legal Considerations for Acquisition Due Diligence Law

Non-Compete Laws

Restricted with 12-month cap and garden leave requirement. Sale-of-business exception.

Filing Requirements

Entity mergers and conversions require filing with the Massachusetts Secretary of the Commonwealth, Corporations Division. The Department of Revenue requires tax waivers for asset purchases. Professional corporations require additional filings with the relevant licensing board.

Key Massachusetts Considerations

Massachusetts's Noncompetition Agreement Act requires garden leave pay (50% of highest salary in the last 2 years) during the restricted period, making non-compete retention in acquisitions expensive
The 4% millionaire surtax (effective 2023) significantly affects after-tax proceeds for high-value deal principals selling pass-through entities
Massachusetts has extensive biotech and life sciences tax incentive programs (MLSC) that can affect valuation of acquired entities with qualifying activities

Massachusetts Bar Authority

Massachusetts Bar Association. Voluntary bar. The Massachusetts Supreme Judicial Court handles attorney admission separately via the Board of Bar Overseers.

Bar association website

Massachusetts Federal and Business Courts

Federal districts: D. Mass.

Business court: Massachusetts Superior Court Business Litigation Session (established 1999) Business Litigation Session (BLS) operates in Suffolk County (Boston); handles complex business disputes. Extended to other counties on an ad hoc basis.

Massachusetts M&A Market Context

Massachusetts is a major M&A market for life sciences, biotechnology, technology, and financial services, with Boston and Cambridge generating significant deal activity.

Watchpoints

Common Boston Acquisition Due Diligence Law Pitfalls

These are the items we see derail acquisition due diligence law transactions in the Boston market. Each one is rooted in current statutory law, recent legislative changes, or recurring patterns from the deals Alex has handled.

Massachusetts non-compete enforcement and earn-out exposure

State legal framework

Restricted with 12-month cap and garden leave requirement. Sale-of-business exception.

"When the other side returns a redlined definitive, you don't need to be an attorney to scan the document and see whether it's signal or noise. If the entire document is now red, you can see it visually. The quick scan is whether these are actually important points or whether this is grammatical nitpicking for the sake of grammatical nitpicking. The latter is a pretty big red flag pretty quickly. In a good transaction, the redlining focuses on risk allocation, earnouts, exclusivity. The structural points that matter to the client on either side. That's fair. That's fine. When you see the same point reraised three rounds later, you have to ask whether that's a memory problem or just another way to keep the meter running. Sometimes I wonder if the firms are working together to make sure it goes back and forth. I'm not part of that."
Alex Lubyansky · Leo Landaverde M&A Podcast

Boston local regulatory exposure

Local regulatory

Massachusetts regulatory framework attorneys flag at LOI

State statute

Securities regulated by Massachusetts Secretary of the Commonwealth Securities Division (sec.state.ma.us). Massachusetts has one of the more active Blue Sky enforcement environments in the U.S.; merit review authority exists for certain offerings. Non-competes are subject to Massachusetts Noncompetition Agreement Act (M.G.L. ch. 149, sec. 24L) requiring salary thresholds, garden leave pay, and prior notice.