How do I close this deal?

[Ben Roberts]

I was contacted by a young woman who said she had a house to sell in Memphis.  The house is 3/1, about 1300 sq ft, near Elvis Presley and Mallory, and she claims it's in pretty good shape, though outdated.  I'm going to look at the house this weekend where I'll be meeting my contact and her cousin to figure out the best way to get the house sold and make them an offer. The house is owned by her grandparents who moved in to a nursing home a couple weeks ago.  She told me that they would likely be signing the house over to her.  

Is my best bet to wait for that to happen?  Suggest she try to get power of attorney? Should I try reaching the current owners directly or have her introduce me?  If they had to be moved to a nursing home, I wonder what the likelihood is of them having all of their mental faculties, or them being able to make a closing?  

Any advice would be much appreciated.