All depending on perspective.I would take it with a big grain of salt, I think Opendoor is trying to drum up interest, given how many properties, they and other institutional buyers, are having on the market (e.g.

If you building 2 , again depending on your lot size and projected finishes. 

Financing depends on your scenario and what type of property you're purchasing.

Good question, they seem to be all over the place depending on the area and I am not an insurance specialist, I think typically 1.5-2x normal rates but I could be off by a bit i have been honing in on White Hawk if you know that development and its in the pines but it does have water system with hydrants but volunteer fire department ..

Depending on how big your portfolio is it might be more or less expensive for you.

Maybe even a B depending on how you're feeling that day.

That is often a matter of opinion and will depend on the attitude of your municipality.Most municipalities do not require neighborhood approval, but will offer the public opportunities to provide input which will be considered.

Depending on the state, you have to take certain steps before eviction process can proceed.Read up on the state landlord/tenant laws and become very familiar with for future.

Its a 12 unit building so lets say 2 persons per unit . 60x2=120 a day per unit 120 x 12 units = 1440 gallons Depending on area lets round it up to an even 2000 gallons . 

It depends on who you're hiring but that seems fairly standard.