Your benefit is having a secure asset held by the IRA with the potential both for cash flow and appreciation.A self-directed IRA or Solo 401(k) is similar to conventional plans, just configured somewhat differently to allow for investment choices beyond what is sold by financial firms on Wall St. 

Id like to see different ways the space can configured. 

@Jonathan Camachoi'd look at a whole bunch of properties, all different configurations, to determine if any would be a good fit for you and your family. 

The Act requires all newly constructed multi-family dwellings of four or more units intended for first occupancy after March 13, 1991, to have certain features: an accessible entrance on an accessible route, accessible common and public use areas, doors sufficiently wide to accommodate wheelchairs, accessible routes into and through each dwelling, light switches, electrical outlets, and thermostats in accessible location, reinforcements in bathroom walls to accommodate grab bar installations, and usable kitchens and bathrooms configured so that a wheelchair can maneuver about the space.Developers, builders, owners, and architects responsible for the design or construction of new multi-family housing may be held liable under the Fair Housing Act if their buildings fail to meet these design requirements.

give me the zip code + home configuration .... and I would predict the home value in 5 years ... usually my calculation is dead accurate better than Zillow estimate LOL :)

What worked for me in breaking through: 1) keep contacting support about the problem, every day - stay on them; 2) I spoke with numerous different support people, and only 1 of them was proactive in getting back to me with regular status updates - find that person and keep in touch with them daily to get resolution; 3) include as much detail as you can in your correspondence - in my case I had to send links to my city's website where the city clearly spelled out their STR/LTR classification and licensing requirements.Lastly, if you operate a long-term rental on ABB and/or VRBO, make sure it is properly configured as an LTR with a 31-night minimum on those platforms - it looks like I hadn't completely done that on VRBO, and that bit me in the butt one year later.

The configuration you describe is common here; many of the 1.5 & 2.5 story pre-WWI homes and the post WWII dobie/Johnny houses were built in just this manner.

How much meeting space and what configuration do you want?

How would I configure that in the calculator?

Wifi is easier and one less item to configure/worry about.