New York State Real Estate Law:

Section §175.23 Records of transactions to be maintained:

(a) Each licensed broker shall keep and maintain for a period of three years, paper and/or electronic records of each transaction effected through his or her office concerning the sale of real property used or occupied, or intended to be used or occupied, wholly or partly, as the home or residence of one or more persons improved by a one-to-four family dwelling, or a condominium or cooperative apartments but shall not refer to unimproved real property upon which such dwellings are to be constructed. 

All property management companies and brokerages are regulated as licensed brokers.