Exhibit 1

JOINT FILING AGREEMENT

     The undersigned hereby agree that this statement on Schedule 13D dated September 3, 2008 with respect to the common stock of Boston Private Financial Holdings, Inc. is, and any amendments hereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: September 3, 2008

	DBD CAYMAN, LTD.
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Director
	TCG HOLDINGS CAYMAN II, L.P.
	By:	DBD CAYMAN, LTD.,
		its general partner
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Director
TC GROUP CAYMAN INVESTMENT HOLDINGS, L.P.
By:  TCG HOLDINGS CAYMAN II, L.P.,
	its general partner
	By:	DBD CAYMAN, LTD.,
		its general partner
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Director

	CARLYLE FINANCIAL SERVICES, LTD.
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Managing Director
	TCG FINANCIAL SERVICES L.P.
	By:	CARLYLE FINANCIAL SERVICES, LTD.,
		its general partner
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Managing Director
BP HOLDCO, L.P.
	By:	TCG FINANCIAL SERVICES L.P.,
		its general partner
	By:	CARLYLE FINANCIAL SERVICES, LTD.,
		its general partner
	By:	/s/ Daniel A. D’Aniello
	Name:	Daniel A. D’Aniello
	Title:	Managing Director