She believes the house may be in foreclosure but does not know if the house has been foreclosed on (she was not getting her mail forwarded to new address).

They are a little harder to get into but has less competition and itt's not retail buyers.You might have to form a partnership to do that but as long as you keep control it can be a better thing and you can have several units at the same address. 

Now to find her address!

Take a look at the maps and look at the individual addresses that were used as a basis, as a rent comp in another section of town that may not be applicable could dramatically raise or lower the rents given. 

These are very sophisticated individuals so NEVER trust a wire request.  

Joe specializes in real estate , business , personal injury and trust law.

Address and price? 

Do I contact the owner through the snail mail address that is listed?

Is he a trusted 👨?

I think you just have to interview a bunch that you trust and create a team for yourself.