We plan to move forward with the sale either way and I have recommended the mother to seek representation, but where I'm lost it, why would anyone, prefer and eviction over Cash for Keys?

You think it will be passive because you are planning on hiring property managers, but that's a big cost for one property and you still have to manage the manager or your cash flow will dwindle.The way you are proposing what you want, you may get caught in a turnkey funnel and end up with less potential scale on the investment than you had hoped.

I think I need to submit a floor plan as well with application for occupancy?

@Nick Kohilas I believe 50% is more commonly found in high-end resort towns such as Vail or Park City; it's definitely more than I'd want to pay!  

(I’m planning on doing a 1031 exchange) 

It’s the exact first thought that crossed my mind in every driveway we parked.

There are far more important items you should be prioritizing but first so I am clear on the strategy, it sounds like the business plan is to go under contract, renovate the building and then purchase the building once renovated and stabilized?

Picture this: After weeks of negotiations and planning, all parties involved finally reach an agreement on the terms and conditions of the sale.

We are planning to rent it out and move to Massachusetts.

Look near national parks