The Symmes Advisory Committee (SAC) Request For Proposals (RFP) (below) gives a very good overview of the history of Symmes Hospital - Lahey was paying $525,000 per year in rent
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More 2002 info here - https://sites.google.com/site/arlingtonmass2002/home
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http://www.nfpa.org/assets/files/MbrSecurePDF/Journal0702Assisted.pdf?src=nfpa - fire safety info about Sunrise Assisted Living in Arlington Heights