Trees,
Are you trying to get CRA credit for the loans under the Community Development Test?
If so, it sounds like what you described is likely to qualify. However, just its non-profit status alone will not qualify it for CD credit. If I was looking for additional support I would try to find any information from the organization that indicates that the seniors being served are LMI individuals. Since they are providing medicals services they may have information about how many of the patients qualify for Medicaid. If its over 50% then its a slam dunk.
If the organization is large enough to produce annual reports you can usually find good information about the populations they serve in those reports. Getting the numbers or percentages of LMI served seems to get things qualified more easily. From my experience, when an examiner sees "62% of patients qualify for Medicaid according to 2015 annual report" they qualify it and move on. Of course I would make sure that's what the annual report says........
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Opinions expressed are my own and do not reflect legal advice or the opinions of my employer.