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I always suggest founders of new nonprofits use a fiscal sponsor to handle accounting, 501c3 status and other back office work. Having the founders working on the mission and figuring out if there is a real need for the org and the programs (and findability), and not on the machinery of starting and administering of a charity is well worth the fees.
I just launched as a standalone c3 after 4 years of sponsorship, it worked for us.