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Rendle A. Jones

Rendle A. Jones joined Gilbert Harmon, Esquire (1910-1998) the founder of Harmon, Jones & Sanford, LLP, in 1968 after helping establish a state-wide legal services agency. Since that time, he has been instrumental in maintaining the law firm as a highly regarded legal services provider and counselor in Knox County and the State of Maine.


Mr. Jones' primary areas of practice include:

  • Business and Estate Planning

  • Probate and Trust Administration

  • Real Estate Transaction


A former President of the Knox County Bar Association and a Governor of the Maine State Bar Association, he is also a past Chairman of the Real Estate Section of the Maine State Bar Association. Mr. Jones is a recipient of the Townsperson of Year award given by the Camden-Rockport-Lincolnville Area Chamber of Commerce.


Mr. Jones has been active in numerous community organizations and boards, frequently in a leadership capacity, including:

  • Camden National Corporation (a bank holding company) (Past Chairman)

  • Penobscot Bay Healthcare (Past Chairman)

  • Camden Area YMCA (Director & Officer)

  • West Bay Rotary (a Paul Harris Fellow) (Director)

  • Camden Public Library (Past President)

  • Maine School Administrative District No. 28 (Past Chairman)

  • Camden Comprehensive Planning Committee (Past Chairman)


Mr. Jones lives in Camden with his wife, Pat, who is a local real estate agent. He enjoys reading, boating, gardening and skiing.


Contact Rendle A. Jones at

John J. Sanford

John J. Sanford joined the firm in 1973 after graduating from Suffolk University Law School, cum laude, where he was a member of the Law Review. He is a graduate of the United States Air Force Academy and a Vietnam Veteran.


For more than 20 years, he was a Visiting Lecturer at Harvard Law School including serving as faculty member of the Harvard Trial Advocacy Workshops. With more than 35 years of litigation experience, Mr. Sanford has been lead counsel for several complex trials and has argued many significant cases before the Maine Supreme Judicial Court. He also has extensive experience in the administration of trusts, including trusts holding nontraditional assets.


Mr. Sanford's primary areas of practice include:

  • Serving as a mediator in complex civil litigation matters

  • Probate Litigation

  • Trust & Estate Administration

  • Estate Planning

  • General Civil Practice


Mr. Sanford has been active in the community, including service on numerous boards including:

  • Camden Area YMCA

  • Northeast Health (former Chairman)

  • Camden Rotary Foundation (awarded Paul Harris Fellow)

  • Camden Public Library (Honorary Trustee after serving as President for many years)

  • Bay Chamber Concerts (2013 – present)

  • Owls Head Transportation Museum (2014- present)


Mr. Sanford lives in Camden with his wife, Claire. They have four daughters, and fourteen grandchildren. His hobbies include reading, fly fishing, sailing his 1930 Rhodes ketch, and woodworking.


Contact John J. Sanford at


Mary ("Martie") Platt Cooper is a partner who joined the firm in 1999 when she moved to Camden, Maine from Bethesda, Maryland where she was born and raised.  Ms. Cooper graduated from the law school at Catholic University in Washington D.C. with top honors in 1993 and then served for 2 years as a law clerk to a United States District Court Judge in New Jersey.  She then practiced for 4 years in the Washington, D.C. area before moving to Camden.


Ms. Cooper's current practice consists primarily of handling real estate transactions, probate and trust matters, business organizational matters, and a variety of civil disputes and litigation including property and land use/zoning matters, probate matters, contractual matters and personal injury.  Although she is a skilled litigator, having worked solely as a litigator prior to moving to Camden, she has focused on and developed an expertise more with transactional work since moving to Maine. She is an attorney licensed to practice in Maine, Maryland, Pennsylvania and the District of Columbia.


Ms. Cooper has served on various community boards in Maine including:

  • Camden Public Library 

  • Planning Board for the Town of Hope. 


She currently serves on the Board:

  • Mid-Coast Recreation Center, a non-profit organization in Rockport, Maine which promotes healthy living through sports and fitness programs.


Ms. Cooper lives in Hope, Maine with her husband and their two sons. When not practicing law, she enjoys spending time with her family and playing tennis. She played field hockey at Wake Forest University, where she received her undergraduate degree in Business & Accountancy. 


Contact Martie P. Cooper at

James M.B. Wickenden, Sr.

Jim joined the firm as partner in 2019. He has been practicing law for close to 30 years, and he brings to the firm a breadth of experience and skill as an attorney.

Jim grew up in Rockport, graduating from Camden-Rockport High School in 1983; Yale University in 1987; and Columbia Law School in 1990.

Following graduation, Jim worked as a corporate associate at Cravath, Swaine & Moore, in New York and London.  He then moved to J.P. Morgan, where he worked in New York, Hong Kong, Singapore and London, latterly as Head of Legal and Compliance for the Europe, Middle East, and Africa region and as a member of the European Management Committee.


Jim returned to private practice in 1999 at London-based Herbert Smith, where he served as Global Head of U.S. Securities Law for 13 years and as Global Head of Capital Markets for seven years.  Jim was then recruited to join international law firm Allen & Overy as head of U.S. Corporate Finance and a member of their London Executive Committee, based in London and Hong Kong.


After 25 years working abroad, Jim returned with his family to the U.S. , became a member of the Maine bar and formed a solo practice at Wickenden Law, LLC.  During this time, he continued working in a privately-held real estate investment company, buying, selling, developing and managing properties in Switzerland, England, and the U.S.


Jim’s practice areas have been primarily Mergers & Acquisitions and Corporate Finance, advising major international corporations and investment banks.  His current practice will focus initially on Real Estate transactions, Trusts & Estates, and Small Business matters.


Jim is admitted to practice law in Maine, Massachusetts, New York, and Washington, D.C.


Outside of practicing law, Jim enjoys spending time with his family in Maine and the Caribbean and enjoys reading, writing, sailing and skiing.


Contact James M. B. Wickenden, Sr. at