Mark Himsworth has been handling commercial litigation matters for over 20 years. A member of the Litigation Department at Hamburg, Rubin, Mullin, Maxwell & Lupin, a considerable amount of his practice is related to business disputes, including cases involving covenants not to compete, interference with contractual relations, unfair competition, misappropriation of trade secrets, commercial defamation, and partnership and shareholder disputes. In addition, he handles a wide spectrum of construction disputes, including construction defect claims, mechanic’s lien claims, unfair trade practice and consumer protection law claims, municipal bid litigation, and payment and performance bond claims. He also represents residential and commercial brokers in broker malpractice cases and in commission disputes and individuals and companies in various real estate disputes, including quiet title actions, partition actions, claims involving adverse possession, lis pendens, easements, deed restrictions, disputes involving both residential and commercial agreements of sale, and tax assessment appeals.
Mark is a Fellow of the Litigation Counsel of America, an invitation-only trial lawyer honorary society whose purpose is to recognize deserving, experienced, and highly qualified lawyers. Membership is limited to 3,500 Fellows, representing less than one-half of one percent of American lawyers. Members are selected and invited into Fellowship after being evaluated on effectiveness and accomplishment in litigation and trial work, along with ethical reputation.
Mark currently serves as a member of the Board of Directors of the Montgomery Bar Association, is a past President of the Montgomery Trial Lawyers and is a member of the Montgomery Inn of Courts as a Barrister and past Treasurer. Mark was named to the Pennsylvania Super Lawyers list for Business Litigation for the years 2010-2022. No more than five percent of the lawyers in the state are selected by Super Lawyers each year. He is a current member of the Advisory Council of the PennSuburban Chamber of Commerce. Mark is a former member of the Board of Directors of the Patrician Society, a non-profit food cupboard devoted to helping the needy in the Norristown area and the United Fund of Collegeville-Trappe, Inc., a non-profit serving various charities in the Collegeville-Trappe area. He is a past President of the Board of Directors of Big Brother/Big Sisters of Montgomery County, and was counsel for that organization. He is also a former member of the Trappe Borough Planning Commission. A graduate of the University of Notre Dame in 1984, Mark obtained his law degree from Widener University School of Law in 1987.