I have been offered a co-founder position. (US registered company) As per my understanding, there are usually no contracts between co-founders. Would like to know where it will be documented that I'm co-founder (to show as proof). Also how will the stakes be assigned? Not asking about the percentage but whether there will be a document to show that i have x% stakes in the company
There are definitely documents between co-founders. The most important one being a 'co-founder' agreement. I draft lots of them each month, and this is a very important agreement (especially considering that the #3 reason for startup failures is fights between co-founders).
You also want to be sure that the stock is allocated to you. This can be done by giving you a A Deed of Assignment of Stock Subscription, or by updating the company registrar of the transfer of stocks (shares) - but the process depends on which state the company is registered in.
I am a mentor on Startups.com, an international lecturer on entrepreneurship and negotiation, and a commercial startup lawyer. I've successfully helped over 400 entrepreneurs, startups and businesses and I would be happy to help you. When scheduling a call, please send me some background information and the 2 main questions you want answered so that I can prepare in advance (to give you maximum value for your money). My reviews: https://clarity.fm/assafben-david