There are 2 websites that might help with the whole milk share and contracts etc. RealMilk.com and FTCLDF.com..... stands for farm to consumer legal defense fund. I haven't been on them lately but they used to list every state, the current regulations and what "slides under the radar" like milk shares here in Va.... Also has some sample forms for milk share OR herd share contracts. There is a difference... a milk share is a "share" of a particular animal... a herd share is a share of overall production....
Understand that there is liability and that you need to make sure that there is insurance to cover you regardless.... Too many people who have decided to "become country people" don't understand the whole animal, milk production, and responsibility of BOTH PARTIES. You could be just fine with people that get the whole milking, animals, farming thing... but all it takes is 1 JERK.....
I am not trying to put a damper on your ideas... it was my thoughts to do that when I "hit retirement" age and cut back or quit testing. Then the ankle and the knees have really made me rethink it all... plus the possible loss of the "nurse cow pasture"..... next year.... I had all those heifers ready to calve that I farmed out to the dairy... I have a 300 gallon stainless milk tank that was going to be mounted on a trailer, alot of things I had planned... I would still do some milk shares with a friendly cow that I could hand milk... but right now it is not in the closeup future.
You just need to make sure you are covered if by some OUTSIDE FREAK chance someone would get sick from some milk.... even if they were at fault... that you wouldn't put your house/property/"farm" in jeopardy . DS carries nearly 2 million liability on his farm policy at the off chance someone gets hurt while they are helping... paid or unpaid....and all paid help are "under the table"...
Just some things to think about... A dairy farmer "sells eggs from his hens" and "gives away" milk if someone wants it.... the "EGG MONEY" goes in the can in the little building where he has the fridge with the eggs and the milk is in the milk tank in the barn.... owner has to bring their own container also....Eggs have always been very expensive to produce....