Email Colleen

603 Post Office Road...
Suite 306...

Licensed & Certified to Practice In

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Maryland and District of Columbia

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October 2018

About Colleen

Possessing an extensive background in real estate law, she served several years as Counsel to Chicago Title Insurance Company of Washington, D.C. Currently the owner and manager of SinclairProsser Law, LLC, Colleen steers her firm with both a guiding hand and also direct involvement with SinclairProsser Law's clients, bringing to the table a wealth of Estate Planning experience from several years spent at the helm of a busy practice. She has served on the Board of Governors Education Committee of the American Academy of Estate Planning Attorneys in the past. Colleen is currently serving on the Board of Trustees for By Their Side, Lifelong Advocates for Marylanders with Developmental Disabilities. Professional Experience An established member of the American Academy of Estate Planning Attorneys, Colleen offers years of experience in estate preservation and transfer. Strong proponents of the living trust, she also focuses on wills, powers of attorney, living wills, probate, trust administration, prenuptial agreements, nursing home planning, and Special Needs planning. She strongly endorses long-term care insurance and, in certain cases, life insurance and some annuities as valuable estate preservation vehicles, and strives to assure the compatibility of her clients' estate plan and financial plan. Sensitive to the challenges presented by lifestyle and circumstance, Colleen addresses each situation with personal attention, wisdom, and skill. Education Colleen Sinclair Prosser received her Bachelor of Science degree with Academic Honors from University of Maryland, College Park, and earned a Juris Doctor degree from The Catholic University of America. She continues her legal education, teaches Continuing Education classes, and meets the education requirements of the American Academy of Estate Planning Attorneys by performing 36 hours a year. She is an approved IRA distribution attorney under the guidance of Ed Slott—a nationally recognized IRA distribution expert—and is a member of the Maryland and District of Columbia Bar. Personal One of five children, Colleen was born in Washington, D.C. and is a lifetime resident of Maryland. She is the daughter of the late R. Ronald Sinclair, founder of SinclairProsser Law, LLC and executive member of the American Academy of Estate Planning Attorneys, and Maureen Mershon, partner in the Holiday Point Marina in Edgewater, Maryland. Ms. Prosser is married to award-winning artist Les Prosser, Jr. Colleen and Les are the proud parents of one son, Jake. They frequently camp in the surrounding mountain ranges and parks and make an annual trip to the Adirondack Mountains of New York. Colleen also enjoys the Arts and has a fondness for British culture cultivated by her time as an exchange student in Europe.

work Experience

SinclairProsser Law, LLC Jan. 1, 1996 - Current

By Their Side Jan. 1, 2002 - Current
Board Member

school Education

University of Maryland, College Park - 1985
Bachelor of Science

Catholic University of America, Columbus School of Law - 1990
Juris Doctor


Transforming the Lives of Families with 20 Years of Membership
American Academy of Estate Planning Attorneys


National Academy of Elder Law Attorneys
None -

Anne Arundel County Bar Association
None -

Maryland State Bar Association
1990 - Current

The District of Columbia Bar
1991 - Current

American Academy of Estate Planning Attorneys
1995 - Current

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