I am likely to begin working for a company that will incorporate and begin conducting business in a couple of months. I am not going to be investing any capital in the company, but i will be doing about 90% of the legwork and practically all of the sales work (only salesman to start). we discussed working for primarily ownership stake (no stock issued, only 4 ppl including myself), but I am unsure what is considered fair ownership stake when i am doing almost all of the work, but will not invest any capital or cash to get started? Please advise
If you don't get a salary for the work you mention, you should be able to convert it into capital.
You can accept a lower salary and the difference between the normal salary and the one you accepted is converted later into capital too.
What is important is not confuse salary and capital. Salary is paid to employee (it can be you) and capital is brought by investors that hope to get dividend or more than they invested when they sell their shares.