I didn't delve into the defamation part since you already covered that anyway. I'll just add for the OP's benefit that if he or she is indeed a "local celebrity" there is the additional hurdle that the U.S. Supreme Court has held that for a public person to succeed in a defamation claim he or she must prove the defendant acted with malice in addition to the other elements of the claim. The link you provided only mentioned that all public officials are considered public persons and are subject to the malice standard and did not make clear that, as a matter of federal law, the malice standard applies to celebrities, too, not just government officials.