or what is a better solutions?

If you can get a bank loan, that is a good solution.  

Otherwise all income and expenses will be in proportion 25%/75%I am looking for the simple and cost effective solution, which could keep each other accountable.Kyle

I'm just not sure my comfort level would be very high with that solution as I'm just jumping into this. 

They were looking for a solution that I just happen to be able to solve or at least I knew people who could HELP THEM SOLVE THEIR PROBLEMS!

Engage them in conversation, offer a solution to their problem, ect.

Typically, if you intend to buy-and-hold you're often better off buying into a complete solution rather than trying to the everything from acquisition thru renovation from afar. 

So ether she comes down to your price or you are not a solution for her.

You can get the address from tax records- but if you already have it- send him a letter stating you are an investor home solution advisor and you are currently purchasing houses in the area.

But if somethings worth doing .......An LLC is intended am finalizing a name xxxx Realty Solutions Group or xxxx Property Solutions Group FL.So you're saying an option is have a licensed realtor or broker as a llc member and paperwork goes thru them?