UPDATES: 8/14/14, 11:15 a.m. EDT. The names of the lawyers from Borden Ladner Gervais have been added to the sixth paragraph of this story. 8/18/14, 12:48 p.m. EDT. Arnold & Porter’s legal team has been added to the fifth paragraph.

Health Care REIT, a Toledo-based real estate investment trust that Bloomberg reports is the nation’s largest health care landlord by market value, has agreed to pay at least $950 million for HealthLease Properties in the latest big deal in the senior housing sector.