Provided, however, where the tenancy involves only the rental of a space for a manufactured home as defined in G.S.143‑143.9(6), a notice to quit must be given at least 60 days before the end of the current rental period, regardless of the term of the tenancy. (1868‑9, c. 156, s. 9; Code, s. 1750; 1891, c. 227; Rev., s. 1984; C.S., s. 2354; 1985, c. 541; 2005‑291, s. 1.)

Banks were renting spaces to get business back in the 20s, hence commercial, and they rented to clothing, shaving, and shine boutiques and whoever else wanted to pay for a space.Some banks will treat anything over a single-family home as a type of commercial property as you are technically renting space as commercially defined. 

1) It sounds like in you're situation that a SFH renting by the room can maximize your situation since you may be willing to share the space.

I will however raise their rents a fair amount each year until we get to what fair market rent would be for their space in it's current condition.

Smaller square footage compared to Whisper as a 4 bedroom, which might limit potential rental income.b) Whisper, San Marcos:Larger home with an extra study room, which is a valuable feature for potential tenants looking for office space.

Hello Samuel,I would look at https://www.mobilehomeuniversity.com/these guys are out of Colorado and own thousands of spaces across the country.   

Absorption rates of competitive office space may not immediately reflect quarterly total job gains or losses, but it is prudent to consider longer-term economic and demographic performance as influential upon current occupancy levels.

This amounts to lost opportunity because if you had purchased RE, at the closing it can start producing return. 5) ADUs detract from the existing structure whether this is privacy, a garage, or just yard space. 6) this is related to number 1, but there are many more buyers looking to purchase homes for their family than there are RE investors looking to purchase small unit count properties.

Also we rarely do structural changes in the first time home buyer space we work in because budgets dont typically allow. 

I also agree that the "coaching" is not great and there is no space to critique the concepts or express any form of dissent.