Exhibit 3.28.1

CERTIFICATE OF FORMATION

OF

ET SALISBURY I, L.L.C.

1. NAME

The name of the limited liability company is ET Salisbury I, L.L.C. (the “LLC”).

2. REGISTERED OFFICE AND AGENT

The address of the LLC’s registered office in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle. The name of the LLC’s registered agent at such address is The Corporation Trust Company.

IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation of ET Salisbury I, L.L.C. this 17th day of December, 1998.

By:	ElderTrust Operating Limited     Partnership, authorized agent
	By:	ElderTrust, general partner
		By:	/s/ D. Lee McCreary, Jr.
			D. Lee McCreary, Jr.
			Senior Vice President
			and Secretary