But, it's not waterproof, not even very water resistant.

The tree next to it burst into flames until the pouring rain put it out 15min later. 

I have been working with them so long I can navigate some of the resistance they can put up for fixing things as well.  

If there might be some resistance, I have offered to pay last, security, and an extra month for them to vacate.  

And there was nothing about it being free but when a lit match burns near dry brush, the entire forest will go up in flames.

Most of that would likely have been flagged/removed under rule I:I - Do Not Flame or TrollFlaming, flame-baiting, and trolling are not allowed anywhere on this site, including in posts, signatures, and private messages.

I understand that water in any amount is an issue, but I am met with resistance when saying I am sending my plumber over ASAP.

You will find a lot of resistance. 

Columbus historically resists recession in terms of population growth so for companies trying to sell goods or house office space there is always a demand.

It technically is ready for service as is, I just wanted to replace flooring with LVP and paint, room-by-room, while it's being shown so it'll be tenant resistant for a while.