S.D. Codified Laws § 36-21A-10
For the purposes of this chapter, a property manager is any person who for a fee, commission or other valuable consideration or with the intent or expectation of receiving a fee, commission or consideration negotiates or attempts to negotiate the rental, exchange or leasing or any real estate or of the improvements on it; lists real estate exchanges, rentals or leases; collects rents or attempts to collect rents for real estate; or advertises or holds himself out as engaged in any of the foregoing activities.
The term also includes any person who engages in the business of charging a fee or contracting for the collection of a fee in connection with a contract under which he undertakes to prompt the renting or leasing of real estate through its listing in a publication issued primarily for this purpose or through referral of information concerning the rentals or leases.
SDCL 36-21A-10