With more time, you should be able to find a more conventional lender to provide temp to perm financing which would cover construction (temp) and then convert to permanent financing upon stabilization.

Every rental should have annual rent increases.Lazy landlords put tenants ahead of profits and should look at some other line of investment.Additionally your tenant is manipulating you and will not move for the sake of a $25 rent increase.

Last summer I invested in a 70liter/day dehumidifier, and you would be shocked how much this helped the situation, both by making warmer temps more comfortable and getting rid of the stickiness.  

They shafted you so now you shaft them.When dealing with people that do not care about you it is necessary to do anything necessary to manipulate them into doing what you want.

Some try to manipulate situations to get what they want.

Anyway, my bill almost doubled that  month but I have to account for the temp being higher that month so I figure for those 4-5 days it costs me around $30-40 bucks running it constantly.

Also, the husband is working but for a temp staffing agency.

Says nothing about paying for temp housing 83.63 Casualty damage.

(besides asking what temp is set to)- Have a A/C company that would charge you $99?

I think it is time you consult a good attorney to protect your interests, know where you stand and how to legally put an end to this manipulative situation.