If the assisted living facility was basically "senior apartments", i.e. the structure will be inhabited by people who will consider that dwelling as their permanent address, then you have a basic HMDA reportable loan - loan made for the purchase or refinance of multi-family property.
This is where you need to look at the appraisal and perhaps business plan to truly determine the use of the property. Is this a nursing home, where patients will reside to receive care rather than stay in a hospital room? Or is this a retirement facility where the people will consider it as their home?
It does not matter if an individual, partnership, LLC, LLP, joint-venture, family trust, corporation, etc. purchase/refinance a multi-family residential dwelling. All are reportable on HMDA. (And yes - commercial loan officers are always surprised to hear that!)