sentences:  With the written agreement of the seller, this would allow the company to try to obtain both the listing side and the "selling" side of the commission, an industry term known as "both sides of the transaction".The L.A. Loft Blog reports that up to 45% of transactions in Downtown Los Angeles in 2011 have been off-market, private listings such as pocket listings.A real estate company which is not a member of any MLS may have pocket listings, but may still be willing to cooperate with other real estate professionals in the sale of their listings.