Mark PenningtonMark C. Pennington PDF Icon
Of Counsel
T: 212 576 2670 | F: 212 686 4023
7 Penn Plaza, Suite 914
New York, NY 10001

Prior to entering private practice, Mr. Pennington was a law clerk to U.S. District Judge Barbara Crabb in Madison, Wisconsin.  He began his career in environmental law with the Washington D.C. office of Bryan Cave, where he developed an in-depth knowledge of hazardous waste law and regulation, representing trade associations and corporations in rulemaking, permitting, and compliance matters.

Subsequently, he practiced in the New York office of Morgan Lewis, where he handled a broad array of projects, including cleanups before local, state and federal agencies; multi-party Superfund proceedings; proactive compliance counseling (solid and hazardous waste, clean air, clean water, community right-to-know); compliance audits; environmental management systems; permitting and enforcement proceedings; litigation of insurance recovery and tort cases; and due diligence and contract negotiation in business transactions.

He has extensive experience assisting clients with building on contaminated property. Mark Pennington joined Osborn as of counsel in November 2007.

Mr. Pennington is admitted to the Bar in the State of New York

Professional Recognitions

Listed in New York Metropolitan Area “Super Lawyers” from 2010 to 2015.
How to get listed as a Super Lawyer


Mark has published and lectured on a broad range of environmental issues, including solid and hazardous waste management, environmental due diligence, financial assurance, insurance coverage, lender liability, conservation easements, and green infrastructure.