You could build a flex-space building for the plumbing company to relocate their office and warehouse AND have enough parking and now you get 5-10K a month or more in rent. 

The ocean surface temperature in the Atlantic is already at a record high in basically late spring and that provides a lot of energy for big storms..

I manage about 100 units, a mix of Commercial, Multi-Family, Single Family, and Warehouse.

They said I don't need the insulation - because the DeHu will keep the temperature in the crawlspace mild, year round. 

IE they have warehouse lines with either investment houses in New York or large banks and as such there are underlying rules for them to follow.PML or HML who has private investors in their fund or brokers for them will have a different set of underwriting rules that maybe tougher or easier depends on the company.you meet individual lenders private folks who do not advertise or hold themselves out as a lender at REIA meetings and networking.When i used to speak at these events first thing I would do is ask the audience who if the room is a private lender usually half the audience raised their hands..

What options do I have to help my tenants to have some type or relief from the upcoming hot temperatures?

It's more affected by temperature swings and many installers don't take this into account - leading to buckling.

We use the metal building for warehouse purposes, and we will soon rent out the other metal building.

Electricity if you're doing climate control, temperature control, humidity control, you can get. 

The government put a temperature limit on them so you can hardly boil water.