We have 3 horses now. I would be sure exactly what costs they expect you to cover such as vet expenses, shoes, and trimming. Will she be showing? You may want to ask about hauling as well if you don't have your own trailer and if they charge for that. Some people who lease also have a specified time the lessee can ride, etc. What do they expect as far as general care and stall cleaning? We just got an arabian for our son to barrel race with and she is FAST! They tend to be very excitable and high spirited by nature, which is exactly what we wanted! I can talk horses for days LOL. We just taught our foundation quarter horse to bow yesterday. Here is a pic of him doing it!