Thats what you get when you dont have a 30 day trial... When I was selling my horse Tater a horse trader almost got her grubby hands on him! Luckily, we had a contract and when she sent him back it was because they werent 'compatible'. Really, she had found another horse she thought was worth more. Tater was a registered Appy and we I saw him the second time he was freshly cleaned, whiskers shaved(he was half blind so that should NOT have been done!), and she was trying to register him but something wasnt working. She said he had trailer issues when we had trained him to where he jumped right in just a year or so before then so that was a lie. Now he is in good hands.
My advice, let them sell him. Surprisingly horse traders tend to sell the horses to non-horsetraders. I got Tater from a horse trader under the impression he was great. He bucked everytime I asked for a canter after three months of owning him. He was a liar himself... anywho, obviously a horsetrader knows who the other horsetraders are(kinda like drug dealers) and tend to aviod them. Who knows, they might find him a better, weathier, happier forever home than you could have(maybe past clients, weathier people that can afford more things,etc.)
Just my two cents