Exhibit 5 VERRILL DANA, LLP Attorneys at Law ONE PORTLAND SQUARE PORTLAND, MAINE 04112-0586 (207) 774-4000 Facsimile (207) 774-7499 www.verrilldana.com February 3, 2005 First National Lincoln Corporation 223 Main Street Damariscotta, Maine 04543 Re: Registration Statement on Form S-8 Relating to Options to Purchase Common Stock of First National Lincoln Corporation Plan Ladies and Gentlemen: We refer to the Registration Statement on Form S-8 (the "Registration Statement") of First National Lincoln Corporation, a Maine corporation (the "Company"), relating to the registration of shares of the Company's Common Stock issuable upon the exercise of options to purchase common stock of FNB Bankshares ("FNB") which have been converted into options to purchase common stock of the Company pursuant to the Agreement and Plan of Merger dated as of August 25, 2004 (the "Agreement") between the Company and FNB (the "Shares") and the FNB Bankshares Stock Option Plan as amended (the "Plan"). It is our understanding that the Registration Statement is to be filed with the Securities and Exchange Commission on or about February 3, 2005. We have examined the originals, or photostatic or certified copies, of such records and certificates of the Company, such certificates of public officials and of officers of the Company, and such other documents as we have deemed relevant. In such examination we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified or photostatic copies, and the authenticity of the originals of such copies. We have also assumed the accuracy and completeness of statements of fact contained in such documents. Based upon and subject to the foregoing, we are of the opinion that the Shares have been duly authorized and, when issued in accordance with the terms of the Agreement and the Plan, will be validly issued, fully paid, and non-assessable. We consent to the filing of this opinion as an exhibit to the Registration Statement. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act of 1933 or the General Rules and Regulations of the Securities and Exchange Commission. Very truly yours, /s/ Verrill Dana, LLP VERRILL DANA, LLP