Mom is 74 and in good shape. Due to a family situation she now needs a new place to live. She can handle a modest mortgage with some cash infusion from my sister and me, or one of us can buy the place and mom can pay us rent to cover the mortgage payment. She found a few places outside Denver for $100-120K. Owning a rental property doesn't help me much tax-wise and I would rather not be a landlord again, even for mom! But overall considering her age, what is the best way to go?

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma