Male Puppy Co-own contract question - Page 1

I would like to know from breeders who want to keep a male from their lines and offer the male on a co-ownership what the general guidlines are for that co-ownership. I know EVERY agreement is different.........looking for general/basics or specifics or whatever you've got.

I have what I call breeding rights males. I sell a male from a litter I really like to a good client whom I know will provide proper home, training & vet care, and I knock their price down a little (usually around $150). In exchange, I have it written up in my contract that I can use that male, once he is 2yrs old, to breed with any female I own of my choice without paying a fee or owing any compensation (owner provides all vet care, food, etc and has to have proof of proper UTD shots/worming when I notify them of intent to use him). I will take my girl up to be bred to him like normal, and they are to allow me use of him. When it comes time to handle paperwork, they have a certain period of time to handle the paperwork and get it back to me or do it online so I can AKC register my litter. There are penalties written into the contract if by chance the 'owner' decides to not provide me stud service, doesn't do paperwork, moves without me knowing, etc (don't assume people are always going to be nice and compliant).  So far, no problems.
I do not retain co-ownership on paperwork because so far I've only done such agreements with people I knew.
One thing about co-ownership is, if for some reason the relationship falls apart, you've automatically got a mess. If the dog isn't properly socialized and he hurts someone, you're equally liable as one of the legal owners if your name is on the papers, too. Also a co-owner could drag you thru all sorts of crap. And, what if the co-owner moves and takes the dog far away-then what? Everyone ends up drug into court. So co-ownership has its pros and cons.
I've only been involved with one official co-ownership, and I signed over the dog once I saw he was being allowed to become too aggressive with people (due to lack of leadership training and proper early socializing, which I told the co-owner early on he would need). It was the best way I could take myself out of the potential liability I can see he is becoming. Co-owners aren't exactly the most considerate people of all time.
I'm not anti co-owner, but my experience with people and honoring their part of mutually signed contracts has been rather weak. Even when they have signed and agreed to the terms, they may or may not abide by them. So always write in REPROCUSSIONS to help cover yourself in a situation if the agreement/contract isn't followed.