Cross selling s the inquiry and solicitation of business from other parties to a transaction. Cross selling can be particularly effective with listing agents and their sellers because there are some advantages to having one mortgage company assist on both transactions, plus it is also the one time where that listing agent will definitely be interested in talking to you since you have a loan in progress on one of their listings. So try it. A simple inquiry to the listing agent as to what the seller's plans are can't hurt. It may just help your business explode!