Art is recognized as a commercial real estate lawyer with broad and diverse experience specializing in land development, urban planning, and zoning. He is a well-known representative of the Northern Virginia real estate community which includes developers, builders, property owners, and financial institutions.

He founded Walsh, Colucci, Lubeley, Emrich & Walsh, P.C. in 1983, after 10 years of private practice in litigation and zoning law. A graduate of the William and Mary law school, Art provides his clients with the expertise necessary to proceed from evaluation of development and zoning feasibility through the zoning and permit approval, construction, and post-construction processes. He has been instrumental in achieving approvals for the Arlington and Fairfax governmental centers as well as many of the development approvals in and through the Metro corridors including the Rosslyn, Courthouse, Clarendon, Ballston, Dunn Loring, and Vienna station areas.

Selected by his peers for The Best Lawyers in America ©, Art has given a number of lectures and presentations on zoning and land use in state bar sponsored Continuing Legal Education programs for Virginia lawyers and at the College of William and Mary School of Law. He participates locally on advisory boards, on committees, and in charitable activities. He is active in alumni matters with the College of William and Mary at both the undergraduate and law school levels and conducts an annual golf tournament to support the Juvenile Diabetes Research Foundation.