Property A could be acquired with a co-investor through a tenant-in-common ownership structure. 

Let me start from the beginning as this is kind of a crazy scenario!

My question is what kinds of due diligence can we do to make sure we are not buying something that can be currently rented for just a few months and then we are stuck without renters :/ Is it acceptable to ask the current renters to sign new agreements if they are close to the end of their contracts?

I need all kind of help , I can use . 

What kind of leads..

Not trying to cast a lot of doom and gloom on what is intended to be a very kind and generous gift but I'd hate to see anyone let along a newbie investor get stuck with a bag of worms right from the get go.

@Manolo D.Depends on what kind of discount you can get on a property and it's condition and if you intend to sell or lease.  

Good luck and I hope the Market is kind to you (Pun intended) 

Some of advice that is a common theme among all the resources and discussions is this: "You make your profit when you buy a property, not when you sell. " and "Buy under intrinsic value."

Hello,You should be able to list it on the market in 3 to 4 months.. anything more than that means you have over 100k invested in the rehab which meand you are looking at above average returns or this is the first time you are doing this.Again, you have given absllutely no idea about what kind of rehab are you doing?