Buy and give seller buyback option

[Paolo Ruggieri]

here is the situation 

-Seller can't make mortgage payments on her house and is soon going to be foreclosed

- seller owns a rental free and clear

- seller wants a loan... She does not want to sell.. She thinks (hopes) to get $$$ from a new album she is about to market (she is a singer)

Giving her a loan is too risky, as she has no assurance to be able to pay it back

My solution:

-buy her rental for 60% market value of the rental (worth 200k, I give her 120k)... She uses 120k to catch up mortgage on her house and for whatever else she wants (she is "only" 90k behind)

- I keep rental payments, I pay property taxes/insurance/maintenance... As a normal landlord

- I give her a buy back option for 140k within 12 months

If she pays me back I earn 20k (140k-120k) 

If she does not , purchase option expires and I earn 80k equity

I read a lot of forums against buy with option for the seller to buy back ... But they are all for sellers that reside in their home... Do you see any risk for my case?