Large basement and attic space, new roof and some of the kitchen is already torn out from the current owner. one bedroom does have a closet that will need built. plumbing seems fine, maybe a couple angle stops to change.

It's not realistic in most cases because warehouses are built as that, which means they run much less electric and plumbing.

What @Nathan Gesner said ^^^^ plus....do you have other construction skills like plumbing/electrical/tile/etc?

No differently from any other plumbing call that we assign to the tenant.

I'm thinking that repairing the plumbing leaks and getting the soil dried out could be a permanent solution.   

However, these properties generally have a lot of land improvements that qualify as well as certain portions of electrical, mechanical and plumbing that can qualify.

By the time I arrived in the evening, everything was torn up—floors, walls, plumbing.

But using that mindset, so is landscaping, plumbing, or clean out during turnover.

Electrical work, plumbing, foundation, windows, roofing, and AC/Heat.

If more important items such as plumbing, electric or mechanicals are not working we will also address that for them but typically we avoid those kinds of properties if its to extensive.For those who are familiar with wholesaling you fully understand that to wholesale none of what we just mentioned above is necessary or obligated to be done in order to wholesale.