Generally speaking...seeking business advice or a partnership with a family member or friend is a bad idea. Once you enter into a business association with anyone...the dynamics of that relationship will change forever. If you want sound business advice...talk to someone who has or is currently running a business similar to yours. 

Bottom Line: Family and friends are for Christmas and holidays. Don't ruin your family dynamics or friendships over business. You will never recover. What you should be seeking are relationships that you can trust.  If you have any doubt about whether you can trust the person you are working with...RUN!!!