How to buy a house from a family member that still owes

[Brice Maready]

My grandmother has recently been put out of work due to medical issues and cannot retire yet.  So currently she lives alone and cannot afford her mortgage payments that she has.  She still owes $58,000 on the loan but the house is worth $130,000 last time it was appraised.  She currently pays $250 a month on the interest but that is all she can afford (I do not know what the month payment actually is.)  She wants to sell the house to me for only what she owes on the house, so it could alleviate some pressure from her financially.  I would still like for her to live in the house for as long as she needs to even if I am losing money in the process because I would be gaining an asset i could use for future loans and rent out in the case that she finds something else or does not need the house anymore.  So my questions are this:

1. Is it possible for her to sell to me at that low of a price and how would i go about getting a deal like that done to benefit all sides

2. Is this a sound investment? I know my cash flow would be negative while she was still living there but I would imagine my monthly payments on $58,000 would be decently cheap so even if she only paid me $200 a month i would not be losing too much money right? and then I would be able to rent it out later to someone else and have a great deal higher cash flow because I bought the property for so low.

And of course I am completely new to this so any additional information would be great, thank you so much!