To be come a recognized 501(c)3 requires approval for the IRS, regulation for the state etc. It requires a board, special filings etc. I would not recommend trying this half heartedly or especially without legal advice. Some attorneys will provide legal services for charities they have strong attachments
The law office of Anders Ferrington 601-316-8428 practices state wide. In no way am I offering you legal advice, and in no way has my comment created an attorney-client relationship. You are not to rely upon my note above in any way, but instead need to sit down with counsel and share all relevant facts before receiving fully-informed legal advice.