As a CPA who does tax returns for several 501(c)3 organizations, be sure your articles of incorporation describe your organization's purpose as charitable, educational, scientific, philanthropy, amateur sports, prevention of animal cruelty, some kind of public good, etc. IRS Publications 4220 and 557 explain what you need.
If your purpose doesn't fall into one of those areas, IRS will deny your application.
If it's rejected, you will also waste your application fee, which was over $600 the last time I checked on it for a club. You pay that each time you apply. You may also be looking at lawyer's fees to help draw up the paperwork.
It's not a cheap endeavor to become a 501(c)3 organization.
73,
Rich Adamy