<prompt> Human: Hey everyone, not sure this is the right sub, but seems to be the best place I can find so farSo I live in Northern California, where home prices in my neighborhood about 1MMy wife and I are thinking of co-buying a home with her brother we all get along great btw so we can pool our money and get a bigger home, plus we love the idea of all living together I know us weird Californians right ; My question is how do we structure the equity fairly seeing that this is what we are thinking about. This can be detailed in a post-nup or legal contract somehow I assume before we buy. We are all on the same page, we are just looking for more options and things we have not thought ofDetailsDownpaymentI have 10K down payment due to my ex wife taking all my savings sigh ... . Spouse 200K , her brother 100KMy spouse and I will be paying for 7537; of the mortgage with me and my spouse paying 5037; of the 7537; 37.537; each..this can change somewhat, but these are our current thoughts.. Expenses will be split along the same 37;sBrother 2537; mortgageIf we divorce and the house appreciates good bet 5-10 years we would get our downpayment off the top and split the remainder gain from our rel 37;If the house goes down and we need to sell...well that is more complicated ...not sure about that yet. Maybe we can rent it or part of it or something. If the brother wants to move out, we will have the cash in all likelihood to buy him out. If any of us lose their job we have enough cash to cover for 12-24 monthsI know this all sounds rather complicated, but a lot of business dealsinvestments with other people are, we just need to hammer out the details before we invest and make sure everything is fair for everyone, get a lawyer and write up a contract. Anyone do anything similar before? Anything else we should be thinking about? Another way to structure this to make it more equibile to everyone? Seeing that I have the least amount of capital, I worry I may be getting a too good a deal here perhaps? Taxs might be complicated I assume, we might need to talk to an expert about this. btw our incomes are around 100-140K each so we should be okay for the mortgage  <response>: Try rwhatcouldgowrong. 