SDCL § 36-21A-150: Duties of broker or licensee after transaction finished.

Unless otherwise provided in the agreement or by law, no broker and licensee associated with that broker engaged as a seller's/landlord's or buyer's/tenant's agent, subagent, limited agent, or transaction broker owes any further duty or obligation to a client or customer after termination, expiration, completion, or performance of the agency or brokerage agreement, except for the following duties:

(1) Accounting for all moneys and property related to and received during the engagement; and

(2) Keeping confidential all information received during the course of the engagement.