The contract and agreement will depend on the owner and what is expected.

We co-owned a young dog with a Junior Handler (a friend of our daughter) and it worked out great for everyone concerned. We had no written contract, which could have been a mistake but it turned out just fine. The dog lived with us at first and when she and her parents went to out of town shows she took him with her. She showed him in both JH and the breed ring and she was the one that put most of his championship points on him.

By the time she'd outgrown JH and he was finished, they'd forged such a bond that we couldn't bear to take him away from her. As a result we gave him to her and they went on to make their mark in the obedience ring too. He spent the rest of his life with her even after she'd married and had kids.

She showed many other dogs for other people for a little while after that and did quite well. She didn't get into professional handling even though she could have. She chose to devote herself to becoming a special ed teacher instead.