Answer:
Section 440-A.
Explanation:
The section of Real Property Law that makes practicing real estate without a license unlawful is "Section 440-A."
This is evident under the New York Consolidated Laws, Real Property Law which stated among other things, that "No person, co-partnership, limited liability company or corporation shall engage in or follow the business or occupation of, or hold himself or itself out or act temporarily or otherwise as a real estate broker or real estate salesman in this state without first procuring a license therefor as provided in this article."
