“I am not looking at buying a horse anytime soon” – Good job, take your time.
“1) How much do half leases normally cost per month from the get go?” – I half lease out my hunter. I’m at a barn that costs 1100/mo for board, and he needs supplements, flax, beet pulp, shoes, etc. Because he’s a little expensive, I half lease him for two days a week for 300/mo. One of those days is always a lesson the person has to also pay for, and one day is a flat ride only.
“2) What are you normally expected to buy?” – I expect my half leaser to pay for their own lessons and have their own saddle (other tack can be shared)
“3) How many times a week do you usually get to ride?” – Two days for my lease, I’ve seen up to 4
“4) What costs do you have to help or fully pay for?” – It is completely different per horse, but typically when you’re half leasing you’ll pay a fee per month and nothing else on top, as it’s less responsibility than a full lease. One of my friends half leases out her hunter and insists the leasor pay for half his clipping fees on top of the monthly fee, which I always though was funny.
“5) Do you sometimes get to trailer the horse to shows?” – Case by case basis. I’m at a show barn so it’s expected my leasor would be going to shows. I don’t charge extra for that.
"6) Are you expected to fully take care of the horse on the day that he is " yours? “” – No, I really have never heard of that unless the barn is self care, and even then it would seem odd.