Generally this exception only applies in the higher end home space.  

Most will also sell to public if you have the storage space and want to save money in the long run.

You still have flooring, cabinets, bathrooms, plumbing, insulation, paint, etc, so all that cost remains the same it would seem. 

The other option is a water supply line, but that would typically resulting a steady leak and the damage would occur faster.Really think about what is above that space that could cause the issue.

Space X is growing there and Elon has plans of this city.

We then used the $60,000 to turn the inside into a small office with mostly warehouse space.

Floor is going in, paint is mostly done, then trim and doors.

Add on rollers, tape, floor coverings, etc and it could easily be $300+ in supplies. 

We found out the potentially the whole block has led pipes so we are needing a contractor to cut a hole in the floor.   

Some states require 2-3 years’ experience as a loan officer first along with you need to open or rent an office space (brick and mortar).