Any notices, requests, demands and other communications provided for by this Agreement shall be sufficient if in writing and delivered in person or sent by a nationally recognized overnight courier service or by registered or certified mail, postage prepaid, return receipt requested, to Executive at the last address Executive has filed in writing with Employer or, in the case of Employer, at its principal executive offices, Attn: Chief Executive Officer, with a copy to Waller Lansden Dortch & Davis LLP, 511 Union Street, Suite 2700, Nashville, TN 37219, Attn: Marc J. Adesso, Esq., and shall be effective on the date of delivery in person or by courier or three (3) days after the date mailed.