I recently completed a small remodel job for a customer without a contract but was paid in full upon completion. they were happy with the job and even tipped me, but now a month later i believe they are having money problems (i did the job very cheap to begin with) and are now saying they are going to sue me for little things that were not a problem as i was doing the job. they were present they entire time and i explained that due to the limited budget not everything would be perfect. can they sue me? im in PA