Mark A. DeFeo

Mark DeFeo counsels private equity funds and emerging companies in acquisitions, equity investments, sales and other significant transactions.  He also advises portfolio companies, start-ups and other businesses on general corporate matters, including governance, equity incentive compensation, financings, and commercial transactions.  Mr. DeFeo has been named a Massachusetts Super Lawyer Rising Star.      

Practice Focus

Mergers & Acquisitions:  mergers, acquisitions, leveraged buyouts, growth equity investments and other strategic transactions in various sectors, including business services, software, clean-tech and healthcare.

Private Equityrepresentation of private equity funds and their portfolio companies in general corporate matters, add-on acquisitions and sale transactions.

Business & Technology:  representation of emerging companies in formation, governance, financings, equity incentive compensation and other general corporate matters.

Representative Engagements

  • Counseled Braintree Payment Solutions in $800 million sale to eBay.
  • Acted as outside general counsel to Braintree Payment Solutions, assisting with acquisition of Venmo, Series B financing, and various commercial agreements and corporate governance matters.
  • Represented venture-backed healthcare IT company in $140 million sale.
  • Represented private equity fund in $80 million acquisition of security technology company and simultaneous spin-off of target company’s software business.
  • Represented private equity fund in leveraged buyout of surveillance software company and substantial equity investment in healthcare data analytics company.
  • Represented growth equity fund in investments in acute care and hospice networks and sale of diagnostics company to public buyer.
  • Represented start-up life sciences company in formation, vendor agreements, and equity and debt issuances.
  • Represented renewable energy company in merger with public company.
  • Represented clean-tech company in acquisition of organic materials manufacturer.
  • Represented institutional investor in multiple mezzanine debt financings and equity co-investments in connection with leveraged buyouts.

Publications and Presentations

  • “Environmental Claims Get Harder to Discharge," co-author, Bankruptcy Law360, November 2010.
  • “Unlocking the iPhone: How Antitrust Law Can Save Consumers from the Inadequacies of Copyright Law,” author, Boston College Law Review, 2008.

Professional and Community Involvement

Mr. DeFeo is a member of the Boston Bar Association.

Education & Credentials

Boston College Law School
JD, 2009, magna cum laude, Order of the Coif
Note Editor, Boston College Law Review
Boston College
BA, 2006, summa cum laude



U.S. District Court, Massachusetts