ditto to what justbloo said. I rescue and I never ask my farrier or vet for freebies, but funny enough they keep dropping things off bills here and there because they appreciate what I'm doing and the fact that I'm not expecting others to carry me financially.

If your uncle is interested is workign with abused animals, I also agree with starting out very small. Abused animals need a lot of patient one on one trust building...even if your uncle has money coming out the ying-yang, and can support a good sized herd. The horses will heal better if he can focus his time on just a couple.