Hello, white_znake, you wrote: _> Greetings, colleagues _> Are planned small service for . To me suggested to participate in it for % from advertizing sale. _> I have a pair of purely projects, but the profit in them is received from sale of pro-accounts and what advertizing. First of all - to agree, only if risks of all participants are comparable to their shares. You, for example, put the work in some term of money with risk not to receive anything in exchange. Then - to understand that % from incomes permanently pay only in that who participates in an earning of these incomes permanently. If promise to enrich % for single operation on service creation or plant at once, or the sentence is restricted on time) I then concluded the contract on rendering of services in software development on the specific total with payment by installments and a binding to incomes. If constant finishings, Open Company with shares are assumed. If . The person do not plan to create, or will work (any pieces of paper it is possible ), or want to pay 13 % (hardly). And on questions: _> 1. How legally to issue a share? The contract with signatures of the sides _> 2. Whether It is necessary to create the company for this startup what legally to issue a share? See above about _> 3. Where to take a document template? Address to lawyers, it is inexpensive. _> 4. The document should be assured, or there is enough signatures? Better yes, it too is inexpensive _> 5. How to control money from advertizing sale what would not deceive? In case of Open Company, you will have an access to the reporting. In case of the contract to inscribe in the contract access to .