SCHEDULE 13D

Mr. Barry Portnoy, Mr. Adam Portnoy and the other trustees and executive officers of HRP own an aggregate 169,038 Shares of SNH, of which 68,990 Shares are held through a corporation of which Mr. Barry Portnoy is the sole stockholder and 5,000 Shares are held directly by Mr. Adam Portnoy. RMR holds 39,019 Shares. RMR Trust holds no Shares, and, as the sole member of RMR, may, under applicable regulatory definitions, be deemed to beneficially own RMR’s 39,019 Shares. Under applicable regulatory definitions, Mr. Barry Portnoy and Mr. Adam Portnoy may also be deemed to beneficially own RMR’s 39,019 Shares. The trustees, directors and executive officers of RMR and RMR Trust, including Mr. Barry Portnoy and Mr. Adam Portnoy, as described above, beneficially own an aggregate of 226,960 Shares. The Shares held by RMR, when aggregated with such additional Shares held by the trustees, directors and executive officers of RMR and RMR Trust, aggregate 265,979 Shares. Each of these amounts represents less than 1% of the issued and outstanding Shares.

The Shares held by Mr. Barry Portnoy, Mr. Adam Portnoy and the other directors and executive officers of HRP, RMR and RMR Trust are reported herein with respect to each of HRP, RMR and RMR Trust pursuant to the provisions of Items 2 and 5 of Schedule 13D. HRP, RMR and RMR Trust, however, each expressly disclaims any beneficial ownership of the Shares held by any of Mr. Barry Portnoy or Mr. Adam Portnoy or other trustees, directors or executive officers of HRP, RMR or RMR Trust.

(b)          RMR has sole power to vote or dispose of its 39,019 Shares. Barry M. Portnoy has sole power to vote or dispose of his indirectly owned 68,990 Shares. Adam D. Portnoy has the sole power to vote or dispose of his 5,000 Shares. To HRP’s, RMR’s, RMR Trust’s, Mr. Barry Portnoy’s and Mr. Adam Portnoy’s knowledge, each of the other trustees, directors and executive officers of HRP, RMR and RMR Trust described above has sole power to vote or dispose of the Shares he or she beneficially owns.

(c)          Other than the HRP Sale, and the acquisition in February 2006 of an aggregate of 336 Shares by certain executive officers of HRP, RMR and RMR Trust (which Shares are included in the totals herein for each such executive officer) pursuant to their participation in SNH’s dividend reinvestment plan, no transactions in Shares have been effected during the past sixty days by HRP, RMR, RMR Trust or the trustees, directors and executive officers of HRP, RMR and RMR Trust described above.

(d)          No other person is known to have the right to receive or the power to direct the receipt of distributions from, or the proceeds from the sale of securities covered by this statement.

(e)          As of March 24, 2006, each of HRP, RMR, RMR Trust, Barry M. Portnoy, and Adam D. Portnoy own less than 5% of the Shares of SNH.