The whole situation does seem overly complicated just for a restroom addition.

After the cost segregation study was performed, this was the new asset allocation breakdown by useful life.Here are some examples of what types of assets are included in each of these asset classes.5 Year Useful LifeSpecialized equipmentCabinets and countersRefrigerators and microwavesSecurity alarm systems and telephone connectionsDecorative wall treatments, ceiling fans and flooring15 Year Useful LifeSidewalks, landscaping and asphalt pavingSignage and site lighting39 Year Useful LifeDoors, walls, roofing and windowsFlooring, drywall partitions and ceilingsEmergency lighting and restroom fixturesPlumbing, HVAC, and electrical distributionThe use of the accelerated depreciation strategy helps real estate investors to reduce the tax liability immediately which therefore increases their bottom line due to the offsetting of income.

It shares a wall with the restroom, and my sons bedroom shares the opposite wall with the same restroom.

Basically it’s about 2500 sq ft rectangle building with a kitchen and his and her restrooms in the middle and 2 large open rooms, one on each end.

All the while remembering- there are no pit cats, only pet cats (and dogs using the backyard as a restroom is one of the reasons I think cats make better renters than dogs).

One of the restroom water pipes broke over the weekend and flooded the whole office that would need a major renovation.

Also your backyard will probably become the dogs restroom and you need to think about who is gonna clean that up if anyone is.

One night mom and dad where having a few beers outside their bedroom patio like they always did on the weekends, dad needed to use the restroom but the patio doors had somehow locked so dad went around the house and used his key to open the front door, as he walked towards his bedroom he heard a man's voice coming out of his daughters bedroom, he walked towards the room and quietly opened the door, there he saw his roommate molesting his 8 year old daughter.

Order something from every bar, order something from every restaurant, make the waitresses work for you, tour the place- the restrooms- the kitchens- the back of the house and walk the entire outside of the building. 

With 6 roomies, and possibly a lot of turnover, (Mi cocina es la cochina de nadie)Same for the restrooms, livingroom and yard.Maybe some maid service to keep the place(s) as desirable living space.I wouldn't not expect flop house types to be big on cleaning up other roommates messes .