BROKERAGE AGREEMENTS FOR BUYERS AND TENANTS (Section 339.780, RSMo) This bill provides that a designated real estate broker acting as a single agent for a buyer or tenant must enter into a written agency agreement before, engaging in brokerage acts, current law allows such a broker to enter into an agreement while engaging in such acts. This provision is the same as in SB 478 (2025) and HB 596 (2025).