After talking with the goblins Harry goes to a law firm that was supposed to be in retainer for his family and dealing with his legal problems.
He shows up in his muggle clothes and asks the secretary (who didn't recognize him) to speak with someone. He got sent to a junior who is a pureblood and basicaly told him to leave because he would not help a mudblood to take some 'poor' pureblood money. So Harry goes to another firm and Harry explains what he needs, who he was and what happened at the other firm she was shocked and accepted to help him. There was also something about the other firm using the fact that they were 'the-boy-who-lived' legal firm to attract clients and making them pay more and when the truth comes out people were not happy about being lied to.