Edit, sign, and share Stallion Service Contract - Horse Equine Forms - Ohio online. Fill out the following contract and submit below.Please fill out each item legibly for our records and yours. If semen is used on a Mare other than as stated in the contract, Mare Owner shall owe additional fees to Stallion Owner. Mare Owner agrees to breed the listed mare to the servicing stallion for the specified service fee which includes the nonrefundable booking fee. This contract dated. Between ("Mare Owner") ___. The essentials for any horse breeding lease agreement – what both mare and stallion owners should look for in a breeding contract. Is there a limit to how many mares my stallion can breed? How to Reserve your stalls.