Our Client gave us a check with with non-matching numbers and words as we deposit many checks at once this was over looked and $2200, was deposited into our account. I brought this issue up to our bank to have it corrected and the money returned as it was not done correctly. However, the client put a stop payment on the second check he wrote to us, client still owes us roughly $1500 for the job and now we have a fee $410 fee for the stop payment. He claims he left the number amount out and we intentionally put $2000 on his check, this is simply not true. My biggest concern now is what are the potential pitfalls we could suffer due to this and how should we prepare ourselves for possible legal actions.