Acreage /Fixer/Horse Property (pittsburg / antioch)

Looking for a horse barn/riding facility that needs a stable lift so to speak.
Would go in with someone as well.
Looking for land conservation/Williamson Act, etc to graze some horses /start a riding barn, or even help manage a place if owner is retiring.
Fairfield/Winters/Rohnert Park/Davis.
Also looking for a veterinary place if owner is retiring