A simple lease with a separate option would be fine. 

The math is pretty simple.

In most cases that I can think of a retail tenant makes up a larger portion of the total building rent.Leases are shorter, so I can capture additional revenue when rents rise.Everyone needs a place to live, but not everyone needs to go to a retail store any more.When times get tough, like during a pandemic, is the government more likely to help people or stores pay their rent?

In terms of ducks in a row, I think that has a lot to due with what your lease says regarding eviction, sounds like a simple breach of contract to me, if your lease says no smoking and you can prove he has been smoking, it says rent is due on the first and he is late, noise ordinance and he isn't respecting it? 

If they couldn't accomplish something as simple as saving up a few months rent, then I wouldn't have any faith they would be able to pay rent on time going forward. 

In a very simple word, if you didn't bring money into the deal, and you are entitled to receive money when the company liquidates (hypothetically) its capital with no basis of yours, then you will have to pay taxes on the money you got for free.

(Right now 2 bedroom singlewide trailers are going for $800 a month where they were $400 2 years ago)If it were as simple as buying 1 lot or a couple acres I would have already jumped on it.

Our first HouseHack we had PMI with our conventional loan, we dropped it in just 2 year from a simple appraisal which did not alert the loan itself. 

(Leaving me with enough credit to complete the rehab) I understand that the goal of the brrrr method is to have the ARV higher than the initial cost of the property, rehab, and all other closing costs in order to refinance which will pay back the line of credit left with just a mortgage that the tenant is now paying.Is it that simple?

It seemed simple enough and I feel lucky to have found a home that brought great success for my first deal.