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There are many different types of non-profits so you need to be clear. A 501C3 is what many consider to be the standard but there are numerous nonprofits. In order to receive an exemption from the IRS for your nonprofit you must apply and they require a disinterested Board of Directors-meaning not related, not personal and other guidelines. To maintain your exemption status you must comply with IRS laws. The more you take away any ability to connect the better chance your exemption will remain in place. There is no requirement that you can’t lease but be careful and have a tax advisor review for you.