<Page> Exhibit 3.43 PAGE 1 DELAWARE THE FIRST STATE I, HARRIET SMITH WINDSOR, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS ON FILE OF "PJC DORCHESTER REALTY LLC" AS RECEIVED AND FILED IN THIS OFFICE. THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED: CERTIFICATE OF FORMATION, FILED THE EIGHTH DAY OF JANUARY, A. D. 2002, AT 9 O'CLOCK A.M. CERTIFICATE OF AMENDMENT, FILED THE TWENTY-SEVENTH DAY OF MAY, A. D. 2003, AT 3:39 O'CLOCK P.M. AND I DO HEREBY FURTHER CERTIFY THAT THE AFORESAID CERTIFICATES ARE THE ONLY CERTIFICATES ON RECORD OF THE AFORESAID LIMITED LIABILITY COMPANY. /s/ Harriet Smith Windsor ------------------------- Harriet Smith Windsor, Secretary of State 3477740 8100H [SEAL] AUTHENTICATION: 3256644 040547220 DATE: 07-27-04 <Page> CERTIFICATE OF FORMATION OF PJC DORCHESTER REALTY LLC This Certificate of Formation of PJC DORCHESTER REALTY LLC (the "COMPANY"), dated as of January 8, 2002, is being duly executed and filed by the undersigned, as authorized person, to form a limited liability company under the Delaware Limited Liability Company Act (6 DEL. C. Sec. 18-101, ET SEQ.). FIRST. The name of the limited liability company formed hereby is PJC Dorchester Realty LLC. SECOND. The address of the registered office in the State of Delaware is 2711 Centerville Road, Suite 400, Wilmington, New Castle County, Delaware 19808. The name of its Registered Agent at such address is Corporation Service Company. IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation as of the date first above written. /s/ Julianne M. Ells ----------------------------------- Julianne M. Ells, Authorized Person STATE OF DELAWARE SECRETARY OF STATE DIVISION OF CORPORATIONS FILED 09:00 AM 01/08/2002 020014245 - 3477740 <Page> STATE OF DELAWARE SECRETARY OF STATE DIVISION OF CORPORATIONS DELIVERED O5:04 PM 05/27/2003 FILED 03:39 PM 05/27/2003 SRV 030343815 - 3477740 FILE CERTIFICATE OF AMENDMENT OF CERTIFICATE OF FORMATION OF PJC DORCHESTER REALTY LLC PURSUANT TO SECTION 18-202 OF THE DELAWARE LIMITED LIABILITY COMPANY ACT * * * * 1) The name of the Limited Liability Company is PJC Dorchester Realty LLC. 2) The Certificate of Amendment is hereby amended to change Article "2" of the Certificate of Formation to read as follows: "2. The address of the registered office in the State of Delaware is 615 South DuPont Highway, in the City of Dover, County of Kent, 19901. The name of its registered agent at such address is NATIONAL CORPORATE RESEARCH, LTD." The undersigned, an authorized person of the limited liability company, executes this Certificate of Amendment on May 27, 2003. /s/Randy Wyrofsky ------------------------ Authorized Person