In general, investors expect the participants (founders, additional employees, contractors, professional services) to be paid for their contributions. However, they would not want the founders and early employees to "get rich" on their investment dollars, therefore you should plan to pay a "living wage" to yourself and others - but not top dollar. If you`re making $50,000 in your full time job today - I wouldn`t plan to quit my job and get a salary of $100,000.
Another variable in the equation, is the stage of the business. If it`s at the "idea" stage, there are a number of things that can (and should) be done before you will need to "quit your day job" and devote full time to it. Your planning should identify the milestones to be accomplished before your full time is needed and exactly what your tasks and objectives will be when you (or any others) do become "full time" on the project.
Finally, keep in mind that - having accepted the capital, you should focus on using it to increase the value (valuation) of the company.
These are general answers. Each individual situation can and should have a specific solution.
I hope it helps.
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