Am I required to sign a release & hold harmless agreement to receive surplus funds?

Location: Georgia. Long story short, a family member died intestate a few years back and the bank foreclosed on their house. There were surplus funds in the auctioning and I am one of its recipients, however they sent me a release & hold harmless agreement to sign before receiving the money. Before I spend money on an attorney to review the agreement, is it even necessary to sign in the first place?