I was actually planning a post about this in the stable section. Ask things like:
*What kind of turn out, how much, ect
*What do they feed? How much, what times of the day (for surprise visits), is it extra costs if you need them to feed certain things.
*Is there Extra charge if you need them to blanket, or any other charges.
*What vet do they have on call
*their personal history/experience with horses
*Who will be handling your horse/ who cleans the stalls/how many times a day
*what are the stable hours
*Are there any rules?
*How often they change the water
*Tack locker/ tack room/ wash rack, ect
*If you need it, is there a place to park your trailer overnight, ect.
*How often do other horses come and go (for diseases, ect.).
*What is there requirements for shots/worming
*Do they have a scheduled farrier?
*Do they live on the property
*How many horses do they stall (I just like to know, it's not really important).
*I like to ask how they would deal with situations that arise like horse s not getting along in turnout, or If they've ever had any accidents.
*I like to get a feel for how the other boarders are, so even asking if the other boarders are pretty friendly, or if they stick to themselves is ok I think.
Hmmmm....I know I'm forgetting something....
You'll probably just pull up and look around the barn, because most of the time (every barn I've looked at), they're always in the barn :)
Good luck and have fun!!