Pennsylvania Statutes Title 63 P.S. Professions and Occupations (State Licensed) § 455.302. Civil suits

No action or suit shall be instituted, nor recovery be had, in any court of this Commonwealth by any person for compensation for any act done or service rendered, the doing or rendering of which is prohibited under the provisions of this act by a person other than a licensed broker, salesperson, cemetery broker, cemetery salesperson, campground membership salesperson, time-share salesperson, builder-owner salesperson or rental listing referral agent, unless such person was duly licensed and registered hereunder as broker or salesperson at the time of offering to perform any such act or service or procuring any promise or contract for the payment of compensation for any such contemplated act or service.