
Generally speaking, finders are not entitled to recover compensation in the absence of an express agreement providing for such compensation. In some states, the agreement must be reduced to writing to be enforceable. If you need assistance in enforcement of your finder's fee, you should engage the services of an attorney.
Other Answers
This would depend on what your contract with the parties said. If no contract, no rights.
Michael A. Caldwell
404-979-3150