Timothy R. Henderson

Timothy R. Henderson

Annapolis, Maryland

Timothy R. Henderson is a co-founder and Managing Partner of Rich and Henderson, P.C.  He represents local and national clients in a variety of matters including environmental permitting, merger and acquisition due diligence, natural resources issues and land use matters.  His practice focuses on regulatory compliance counseling on issues ranging from hazardous and solid waste (involving both RCRA and Superfund), environmental permitting, air quality, wastewater disposal, water use, transactional and enforcement matters.  Guiding investors through the maze of federal, state and local environmental requirements for the acquisition of businesses or land is a major part of his practice. 

Mr. Henderson began his career in 1980 at the Environmental Law Institute in Washington, D.C., and then worked as an assistant regional counsel at EPA Region II in New York City.  In 1987, he moved to private practice; first in New York, then in Washington, D.C. and since 1993, in Maryland with Rich and Henderson, P.C. 

He serves as a co-instructor of Environmental Law for Engineers and Scientists for the Johns Hopkins University Engineering for Professionals Program and a frequent speaker to legal, real estate and land development professionals on legal issues involving environmental due diligence, wetlands and critical areas issues.

Mr. Henderson is the current President of his community's homeowner's association and has been a member of its Board for over ten years.  He is also a member of the Corridor Cities Transitway Area Advisory Committee Two, a planning advisory committee operated by the Maryland Transit Administration for the purpose of engaging public participation for proposed transit projects in Montgomery County, Maryland.   He is a past President of the Maryland State Bar Association's Environmental Law Section.
He received both his master's and law degrees from the University of Wisconsin-Madison. He is admitted to practice in Maryland, Washington, D.C., New York and Wisconsin; before the Federal District Courts of Maryland, the Eastern and Southern Districts of New York, the U.S. Court of Appeals for the Fourth Circuit and the U.S. Court of Appeals for the District of Columbia Circuit. 


Areas of Practice

  • Administrative Law
  • Business & Commercial Law
  • Contracts
  • Energy Law
  • Environmental Law
  • Government Agencies & Programs
  • Land Use & Zoning
  • Natural Resources Law
  • Toxic Torts

Bar Admissions

  • Wisconsin, 1980
  • New York, 1988
  • District of Columbia, 1992
  • Maryland, 1993
  • U.S. District Court District of Maryland, 1993
  • U.S. District Court Southern District of New York, 1990
  • U.S. District Court Eastern District of New York, 1990
  • U.S. Court of Appeals District of Columbia Circuit, 1995
  • U.S. Court of Appeals 4th Circuit, 1997


  • University of Wisconsin, Madison, Wisconsin
    • J.D. - 1980
  • University of Wisconsin-Madison, Madison, Wisconsin, United States
    • M.S. - 1980
    • Major: Land Resources
  • State University of New York at Purchase, Purchase, New York, United States
    • B.A. - 1976
    • Major: Environmental Science

Professional Associations and Memberships

  • Maryland State Bar Association, Environmental Law Section, Chair, 2000 - 2001
  • American Bar Association, Environment, Energy and Resources Section, Member
  • Environmental Law Institute Associates Program, Member, 1982 - Present
  • Stonebridge Homeowner's Association, Board Member
  • Stonebridge Homeowner's Association, President

Past Employment Positions

  • Environmental Law Institute, Attorney, 1980 - 1985
  • U. S. Environmental Protection Agency, Region II, Assistant Regional Counsel, 1985 - 1987
  • Huber, Lawrence & Abell in NYC, Associate, 1987 - 1990
  • Breed, Abbott & Morgan in NYC, Associate, 1990 - 1991
  • Graham & James in DC, Associate, 1991 - 1993