All-in-all the renovations (including a new patio and new plumbing will cost around $90K).

This includes detailing the front yard (with no weeds at all!)

I have a included a link to a PM locator tool ready to go with recommendations in your preferred area.

Again, if your $250k is true, and includes all the electrical upgrades, new plumbing runs, potentially new foundation pour (since I assume the existing garage slab is not capable of supporting a new two story house), I am guessing since I don't know the market, but assume you will have a lot of equity by completing the project.

Correct2. 100 hours could work if it's more than anyone else spent on the property including non-owners3.

The amount of downpayment requirement insures buyers having "skin in the game". 

It's simply a numbers game. 

Usually MTR comes fully furnished with utilities included, so you pay for the convenience.if the area has traveling nurses, other professionals that come for a few months for work they normally pay more, in certain cases the employer pays the rent not familiar with that particular market,  but worth looking into it.

Common fees will include a set-up fee, leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

I would also include 'creative financing available' at the beginning of the listing description to capture everyone else looking on Zillow, etc