It doesnt sound like he's trying to 'take her away'. It just sounds as if he wants the money he thinks he's owed. Sounds like a misunderstanding. Why would he offer to keep your horses for free? Perhaps you guys had different ideas of the deal? And don't jump my case :) im just trying to understand.
Did she previously belong to him?
Reading that again, it seems entirely messed up. Why wouldnt he speak to you before sending a letter. I wish you luck in getting your horses!
I helped him out at his barn for about a year and had expressed interest in my mare. One day he told me he'd sell her to me for a price I thought was fair so I bought her. The verbal agreement was that he was okay with me keeping her there as long as I paid for her feed/hay, which I have done. I helped him out around the barn so he never asked for anything, until today when he sprung all this on me about owing him money. Honestly I think it's because he's struggling to feed his 11 horses and thinks he can take advantage of me to get more money.