A broker from Colorado refers a buyer to a Texas broker. The Texas broker works with the buyer who finds a property to buy. The buyer then asks the Colorado licensee to represent his interest to the Texas broker. The Colorado broker reviews all the terms and conditions set forth in the buyer's offer and makes some suggestions that are then included in the offer. The Texas broker presents the offer. It is accepted. The transaction closes and the Texas broker earns a commission. Can he pay the Colorado broker a commission?