For most solicitors, victory in the Supreme Court would represent a career landmark and potentially an opportunity to run other similar cases. But for Kevin Durkin (pictured below), director of Bradford firm HD Law, the long-awaited decision in the dispute over hidden commissions in motor finance deals may have the opposite effect. HD Law won the case on behalf of Marcus Johnson, successfully arguing in the highest UK court that the relationship between him and lender FirstRand was unfair because of the size of the commission and the concealment of the commercial ties with the car dealer.