Purchasing House Question

[Ezra Henderson]

I tried searching the forums, but couldn’t find an answer to this. 
I have a motivated seller (off market) that is looking to sell a fixer upper house. The house is in the sellers grandmas name, but his grandma moved away to Montana (this is in Ohio), and now her grandson is looking to sell her house. The grandma approves the sale. How should we go about doing this? Should the grandma transfer the title into her grandsons name, and then he sell the house to me? Is there a way for me to work out the sale without the grandma having to come to Ohio? 

Thanks!