The down payment made by one co-tenant (co-owner) of Real Property is reimbursable to the person who paid it.
Looking at the CCP about Partition and the equitable powers of the court, the person paying the down payment should be reimbursed what they paid for the down payment before any distribution of the proceeds. In re Marriage of Leversee (1984) 156 Cal. App. 3d 891...

