I suspect that they will find other ways to intrude into this space at the surface level.

Let me know I can help any further.Basement Requirements:15.12.540 - Basement space prohibited as habitable room, dwelling unit.No basement space shall be used as a habitable room or dwelling unit unless:A.The floor and walls are impervious to leakage of underground and surface runoff water and are insulated against dampness.B.The total of window area in each room is equal to at least the minimum window area sizes as required by Article IX of this chapter and is located entirely above the grade of the ground adjoining such window area.C.The total of openable window area in each room is equal to at least the minimum as required under Article IX of this chapter, except where there is supplied some other device affording adequate ventilation and approved by the housing inspector.D.There are no pipes, ducts or other obstructions less than six feet six inches above the floor level.E.All furnaces or other heating facilities are so located, insulated and separated from living areas by fireproof partitions or walls necessary pursuant to regulations of the fire director, so that the same do not constitute an undue hazard to the safety and health of the occupants.F.There is a second means of egress conforming to the requirements of Section 15.12.270 of this chapter.G.Basement space which shall be used as a habitable room or dwelling unit must conform to all provisions of this chapter and all other applicable ordinances.

Not too comfy.....so, of course, in essentially  all climates, you will need to combat the 100% thermal bridge nature of a steel shipping container with additional framing, insulation, and finished surfaces. 

There's a real misconception that a STR has to be in a resort/vacation destination which on the surface, makes sense.

And remember there is always problems under the surface that an inspection doesn't find.

Will water them from common sources close to the surface, or with surface water (are you sure no chemical pesticides will be in the water 24/7-365--in farm country-good luck on that).Will local crop duster chemicals blow over onto your 'Clean Green" plots and contaminate them?

While others may skim the surface, this program dives deep into the world of creative financing strategies.

Over the leaseback period, while the property might appear well-maintained on the surface, underlying issues might manifest later, resulting in potentially unforeseen expenses.

The real reason this argument surfaces has nothing to do with reality- it's an emotional argument, based on them not liking all the activity and the occasional noise, and a few other issues- that especially surface in cities.

Check the comps but on the surface I would think you need to do a bigger addition in order to maximize economy of scale.I would recommend going the 3 bed/2 bath route.