FOURTH AMENDMENT TO LIMITED PARTNERSHIP AGREEMENT OF JOSEPH R. DOHERTY FAMILY LIMITED PARTNERSHIP, L.P.

Exhibit 7

FOURTH AMENDMENT
TO
LIMITED PARTNERSHIP AGREEMENT OF
XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P.

          The undersigned, being the sole General Partner and all of the Limited Partners of XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P. (the “Partnership”), a Delaware limited partnership under Limited Partnership Agreement dated December 31, 2001, as amended, (the “Agreement”), hereby acknowledge and agree that:

          (1) Pursuant to an Assignment of Interest dated as of November 21, 2008, XXXXXX X. XXXXXXX assigned fifty Class B Partnership Units in the Partnership to XXXX X. XXXXXXX;

          (2) As a result of the foregoing Assignment, XXXXXX X. XXXXXXX holds no Class B Partnership Units and XXXX X. XXXXXXX holds one Class A Partnership Unit and ninety-nine Class B Partnership Units;

          (3) The General Partner hereby consents to the transfer of the fifty Class B Partnership Units by XXXXXX X. XXXXXXX to XXXX X. XXXXXXX and the admission of XXXX X. XXXXXXX as a Limited Partner of the Partnership; and

          (4) Schedule A to the Agreement is hereby amended in its entirety and replaced by the new Schedule A attached hereto.

          This document shall be considered the Fourth Amendment to the Agreement, which, except as specifically amended by this Fourth Amendment, shall remain in full force and effect in accordance with its terms.

           IN WITNESS WHEREOF, the parties have hereunto set their hands and seals as of the 21st day of November, 2008.

GENERAL PARTNER

AND LIMITED PARTNER:

/s/  Xxxx X. Xxxxxxx

Xxxx X. Xxxxxxx

FORMER LIMITED PARTNER:

/s/  Xxxxxx X. Xxxxxxx

Xxxxxx X. Xxxxxxx

Witnessed: 

11/21/08 

/s/  Xxxxxxxxx Xxxxxxxx

Xxxxxxxxx Xxxxxxxx
00 Xxxxx Xxxx Xxxxxx
Xxxxxxx, XX 00000

SCHEDULE A

XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P.

		Class of				Number of
		Partnership				Partnership				Capital				Participation
Name of Partner		Shares				Shares				Contributions				Percentage
XXXX X. XXXXXXX			A				1			$	23,506				1.0	%
XXXX X. XXXXXXX			B				99			$	2,327,081				99.0	%
Totals:							100			$	2,350,587				100.0	%

ASSIGNMENT OF INTEREST
XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P.

          I, XXXXXX X. XXXXXXX of Winchester, Massachusetts, currently hold fifty Class B Partnership Units as a Limited Partner in the XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P. (the “Partnership”), a Delaware limited partnership under Limited Partnership Agreement dated December 31, 2001 (the “Agreement”).

          Pursuant to Section 11.4 of the Agreement, for consideration of Eighty-Seven Thousand Five Hundred Dollars , the receipt and sufficiency of which is hereby acknowledged, I hereby assign said fifty Class B Partnership Units to my son, XXXX X. XXXXXXX, General Partner and Limited Partner of the Partnership. This Assignment shall be effective upon its delivery to my assignee. I intend that my assignee shall become a Limited Partner in the Partnership with respect to the transferred interest.

          Subsequent to this assignment I shall retain no Partnership Units in the Partnership.

          Executed under seal as of the 21st day of November, 2008.

	By:	/s/  Xxxxxx X. Xxxxxxx
		Xxxxxx X. Xxxxxxx

Witnessed: 

/s/  Xxxxxxxxx Xxxxxxxx

11/21/08 

Xxxxxxxxx Xxxxxxxx
00 Xxxxx Xxxx Xxxxxx
Xxxxxxx, XX 00000

COMMONWEALTH OF MASSACHUSETTS

Suffolk, ss.

          On this 21st day of November, 2008, before me, the undersigned notary public, personally appeared XXXXXX X. XXXXXXX, proved to me through satisfactory evidence of identification, which consisted of personal knowledge, to be the person whose name is signed on the foregoing document, and acknowledged to me that he signed said document voluntarily for its stated purpose.

			/s/  Xxxxx X. Xxxxxx
	[NOTARIAL SEAL		Notary Public
	APPEARS HERE]
			My commission expires: 9/26/14

ACCEPTANCE OF INTEREST
XXXXXX X. XXXXXXX FAMILY LIMITED PARTNERSHIP, L.P.

          I, XXXX X. XXXXXXX, hereby acknowledge my receipt and acceptance of the foregoing assignment. I hereby accept and adopt the provisions of and agree to be liable for and assume all liabilities and obligations of said XXXXXX X. XXXXXXX under the Xxxxxx X. Xxxxxxx Family Limited Partnership, L.P., Limited Partnership Agreement with respect to the Partnership Units so assigned to me.

          Executed under seal as of the 21st day of November, 2008.

/s/  Xxxx X. Xxxxxxx

Xxxx X. Xxxxxxx, Assignee

COMMONWEALTH OF MASSACHUSETTS

Suffolk, ss.

          On this 21st day of November, 2008, before me, the undersigned notary public, personally appeared XXXX X. XXXXXXX, proved to me through satisfactory evidence of identification, which consisted of personal knowledge, to be the person whose name is signed on the foregoing document, and acknowledged to me that he signed said document voluntarily for its stated purpose.

			/s/  Xxxxx X. Xxxxxx
	[NOTARIAL SEAL		Notary Public
	APPEARS HERE]
			My commission expires: 9/26/14