Yes, the driveway slopes down; so as you walk further towards the back there are full-size windows on the side of the building where the bedroom and kitchen are.

It is less about the size and more about the drive to get there. 2 hours round trip.

It will certainly depend on your sample size as well. 

I have an investor from Cali who just finished up with "Rent" portion of the BRRRR.

Although, the property I'm contracted on has units that go for $140-$165 for a larger sized unit.What I'm looking for is the industry average of net cash flow per unit per month.

You may find it best to buy multiple pint sized cans rather than a single large can.

What's the reason behind facilities of that size?

As for financing tiny homes as defined are under 400 sq. feet in size. 

The Assessments levied by the Association shall be used exclusively for payment of Common Expenses including, without limitation (i) the upkeep, maintenance and improvement of the Common Areas and other maintenance obligations set forth in Sections 10.1 and 10.3 below; (ii) maintenance, repair, replacement, and operation of rights-of-way and easements within or immediately adjacent to the Project (e.g. landscaping and sidewalks within the right-of-way of adjoining streets) to the extent that such actions are required by government entities or deemed appropriate by the Board, (iii) promoting the recreation, health, safety and welfare of the Owners and other lawful occupants of Lots within the Property, (iv) payment of property taxes for the Common Area; (v) insurance premiums; (vi) legal and accounting fees; (vii) management fees; (viii) charges for utilities and other services provided to the Common Area by the Association, if any, and for all utility charges paid or incurred by the City and reimbursed by the Association for street lights in the Common Area; (ix) costs to maintain the entrance features, including any electricity, landscaping and irrigation expenses associated therewith; (x) the performance and exercise by the Association of its rights, duties and obligations under the Project Documents, and (xi) maintaining any Stormwater Control Facilities located on portions of Common Areas to the standard required by the governmental entity or agency having jurisdiction over such areas.

Of course, you won't get the discounts that PM's get because your size is smaller.