People are going to focus on the number of beds and baths and price when looking at the ad (and photos) and the layout when they come to view it.

Etc. 3) Lay out expectations and responsibilities very clearly and in writing from the beginning.

Layout of bedrooms is awkward.

There are other considerations that may still make it impossible to permit the construction of the building even  if the by-right use permit is obtained and its important to have an architect closely examine how the proposed floor plans will layout to confirm egress &  bedroom windows + localized zoning overlays along with a  number of other factors.

Gino Thanks Gino, Hi Matthew, without being able to do separate deeds, the 12 plex would likely be the most cost efficient but you will also need to consider the layout of the overall property, where as two 6 plexes may lay out better and more functional, and therefore attract a higher rent and desirability.

Is there an app that will layout a small scale development?

However Don what you lay out is exactly how these things usually play out at least up front..

If you are house hacking, think about number of bathrooms, size of bedrooms and layout of the kitchen (can more than two people work in there at once and is there enough storage)?

Let's break it down into two pieces, the LLC and the partnershipThe LLCYour current operating agreement should lay out ownership structures and contribution.  

After the new security issues arising with videoed properties that are posted on public places...OTA, MLS, etc....we have decided against videos that show the layout of the property, or other details that would breach the security of the home.