Mr. Brennan’s passionate engagement with policy and the environment was nurtured as a student.  Before starting his own law firm, he learned the ropes in various other forums, including growth at several law firms.  Mr. Brennan then opened the doors of the Brennan Law Firm, in Cranbury, NJ, serving as principal of the three-attorney firm since 1996.

Mr. Brennan’s substantial experience encompasses a range of complex commercial litigation, including: disputes involving contracts, commercial leases, real estate, land use disputes, partnership and shareholder disputes, business law, insurance coverage issues, and employment law.  Mr. Brennan is also an experienced environmental litigator, having both prosecuted and defended numerous complex matters including insurance coverage disputes and cleanup cost recovery actions.  Mr. Brennan has a wealth of experience handling complex real estate transactions including the purchase, sale, financing and leasing of commercial and industrial properties,  particularly those involving environmental issues. A detailed list of his areas of practice and regulatory affairs at the state level can be found in below.

As a frequent speaker on legal issues and Listed in Who’s Who in American Law, Mr. Brennan keeps his fingers on the pulse of the legal world by being a dynamic leader in many different capacities. A detailed list of his memberships and affiliations can be found below.

As an Eagle Scout, Mr. Brennan acts as an Assistant Scoutmaster with Boy Scout Troop 52.  He also serves on the Finance and Planning Committee for his church, and has coached quite a few youth sports teams.  On weekends you might find him plying his boat through the salt marshes of the Barnegat Bay,  grilling up fresh seafood and Jersey corn with his wife, two grown children and not so grown Brittany Spaniel, or tooling around historic Cranbury in his ’48 Chevy Pickup.


Dickinson College, cum laude, major in Policy and Management with concentration in Public Policy and Environmental Studies.

• Nisbet Scholar and member of Omicron Delta Kappa, the national leadership honor society.

• Semester-long program in Public Administration at American University in Washington, D.C. 

• Internship, Natural Resources Defense Council, Washington, D.C. 


Marshall-Wythe School of Law at the College of William and Mary in Virginia. Member of the Jessup Moot Court Team and the American Inns of Court.


• Cleanup cost recovery actions pursuant to the Spill Compensation and Control Act

• Regulatory matters involving the Underground Storage Tank Act

• Regulation of underground storage tanks

• NJ Industrial Site Recovery Act (ISRA, formerly ECRA)

• Spill Act violations and claims

• Site Remediation Reform Act issues

• Cleanup actions

• Permitting issues

• Pineland’s Protection Act

• NJ’s Farmland Protection Act, and the Right to Farm Act

• Complex real estate and business transactions

• Purchase/sale/leasing of commercial, office and residential properties, farms, Brownfields, and undeveloped sites

• Purchase and sale of businesses

• Commercial loan transactions / Commercial development and financing

• Land use, zoning, planning, and historic preservation law

• Mr. Brennan authored briefs in the published Federal Court decisions in Clement v. Conrail, et al, 130 F.R.D. 530 (D.N.J. 1990) and Clement v. Conrail, 734 F. Supp. 151 (DN.J. 1989)


Federal and State bars in NJ and PA • Admitted to practice before the Federal Courts for the District of New Jersey, the Eastern District of Pennsylvania, the Third Circuit Court of Appeals and the Federal Circuit Court of Appeals • American Bar Association • New Jersey Bar Association • Middlesex County Bar Association • Mercer County Bar Association • Justice Stewart G. Pollock Environmental American Inn of Court • New Jersey Gasoline C Store Automotive Association • Petroleum Equipment Contractors Association of NJ • Petroleum Equipment Institute • Cranbury Historical Society • Cranbury Business and Professional Association •  The National Trust for Historic Preservation