Did I sign away my rights to the new realator commission refund law?

[Mark Svendsen]

Our trustee had me sign to accept sale of our house sale under contract but he added a sentence that I agree to 5% realators commision. I told him about the new realator commision refund law taking affect in Aug 17 in CA. Is what I signed reversable using the 3 day recind law?  I consent to selling the house but not waiving my rights to the new realator commision refunds coming.  Did the trustee break any laws helping the realator and hurting the beneficiary?