Murfreesboro, TN-based National Health Investors and affiliates of Bonita Springs, FL-based Discovery Senior Living will buy six senior living communities for $128.4 million as part of a new property-company joint venture, the real estate investment trust announced Tuesday.

NHI, the managing member, will own 97.5% of the joint venture equity, and Discovery will own 2.5%. Discovery is an existing NHI tenant.

The properties, located in Pennsylvania, Maryland and Indiana, have a total of 145 independent units, 356 assisted living units and 95 memory care units. They will be leased to affiliates of Discovery for 10 years. The agreement has options for two five-year extensions.

NHI also has committed to a $6 million senior mortgage loan to affiliates of Discovery for an additional property in Indiana; the joint venture will have the option to purchase it once it is stabilized. The community includes 52 assisted living units and 22 memory care units. The loan is scheduled to close by June 30.

“NHI has had a long-standing relationship with Discovery, which is a highly regarded, sophisticated operator of independent, assisted and memory care communities,” NHI President and CEO Eric Mendelsohn said. “We are excited to further develop that relationship through a joint venture on these properties that provide an excellent fit into NHI’s portfolio.”