It is a mistake to think that an entity (corporate) veil can be easily pierced.  

My neighbor did this during one those programs (had a 2 family, made into a legal 3 family by converting the basement) but, among other things, he had to install a fire suppression system in the basement, expand windows for egress/ingress purposes, and do a whole bunch of other things.

Goals - looking to expand/grow and move out to the next hack or hunker down and collect cash flow? 

The quality of work on prefab is not great, but easily sufficient for rentals.  

Rate is but a factor and is easily offset by many other actions that you can take as an investor.  

@Johnny SmithThere are other ways to reduce your taxes besides real estate.I recommend finding a tax strategist who specializes in real estate taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

I think if I furnish it I should easily get the same $2500 or more

They’ll take the design plans and generate them easily. 

I mark the applications down as they come in to keep track of the order in which people applied, and they have to follow up with employment verification, background check, references as well so I can tell who is the most qualified and serious applicant pretty easily. 

It sounds like you’ve already made great strides with your four long-term rentals and that you’re committed to learning and expanding your portfolio, even from afar.