Okay heres my 2 cents worth
No contract no case period. And to me 3 inches is no big deal still hurts when you hit the ground. Maybe he would make a nice sire for sport ponies which by the way bring some really good money.
I highly doubt a well reputable stable as mention ed would be lazy in their sales and contracts.
And my god knock it off with sue happy people that's the reason insurance keeps sky rocketing everyone is out for a quick buck.
If he is healthy and sound good. 3 inches no big deal now if it was a minature then maybe worth getting panties in a wad JMHO