See I think this Texas law protects me quite a bit..
Texas Liability Law
Im not sure that most barns here have insurance...usually we just have to sign a waiver stating that we were made aware of that law.
I probably would never open it to an event...I don't have the parking space. It would be for schooling only.
Anyway...Im trying to find more info on the web...but seems like all I can find are for training barns...I don't want that...just a place where people can come ride?