Re: Partnership Agreement
Whether a business is a partnership or not doesn't depend solely upon the existence of an express agreement, written or oral; it depends ultimately upon how the business is conducted and the understanding of the parties as to how profits and losses will be divided (or not). See California Corporations Code section 16202(a) "....the association of two or more persons to carry on as coowners a business for profit forms a partnership, whether or not the persons intended to form a partnership."
It is difficult to advise you without knowing more about the quality of your business and personal relationship with your son, whether your $50,000+ investment is documented (and whether the documentation tends to characterize it as a loan or an equity investment), what kind of taxpayer ID number was used to open the business checking account, what the landlord (and suppliers, customers, etc.) were told about the nature of the business, and on and on.
My guess is that there is more than enough evidence to show that the Code definition of a partnership is satisfied and that you are coowners; that could be refuted, perhaps, if the money you've put up is clearly documented as a loan and couldn't be characterized as equity.
You are both liable for the business debts if it's a partnership. There are steps you can take to withdraw from the partnership, cut off future liability, and even require your interest to be bought out by the other partner.
Another factor to consider is that if you aren't a partner, and you're working in the business, you are an employee. Are you being paid minimum wages? Is he deducting and remitting withholding tax, Social Security and Medicare? These would be serious violations of various laws! What does the workers' comp insurance policy claim you are -- a co-owner or an employee? You do have comp insurance, of course?
You mention a business license and a seller's permit issued to him as a proprietor. This is some evidence to refute a partnership, but not very strong, in my opinion. Is the business required to file and publish a fictitious business name statement? What this says would be more significant. What might noe infer, if anything, from the business name, letterhead, phone listing and advertising?
I would be pleased to consult with you further on this difficult matter; no charge. You may contact me by e-mail, FAX or phone. See my Web site at www.bizlaw.ws