With the exception of HUD owned homes (where the buyer may select the title company) the bank/corporate seller chooses.
WILMOTH Group (as listing agent) has no say in the matter either.
The reason is that the seller has significant amounts of title work completed during the foreclosure process. The Title company contact information is usually provided with the signed documents from the seller. In all likelihood the listing agent will not have this information prior to receiving the document package.
With traditional real estate sales (non-corporate seller) the seller also selects the title company unless the buyer has successfully negotiated their preference of a title company in the purchase agreement.