Ouch is right. if you can go more traditional or FHA its defiantly worth it. 

It will make life much easier and worth the cash!

The time and energy you will spend pursuing a remedy is not worth it.  

The other is a mobile-home, worth almost nothing, that brings in twice as much money each month due to being paid off.  

I agree with your point about whether you could improve revenue with $10-20K invested, I think that's a framework to decide if it's worth it to keep going or get out. 

How much is not having to move worth?

I manage a mid-term rental in Cary and there is a lot of demand in the triangle for displaced home owners so that may be worth considering.

For example, I lived in the past in Arizona, so when I do my taxes I print 2 copies, and send one copy to the IRS (the Feds) and the second copy to the local IRS (the Arizona IRS, which is called Arizona Department of Revenue, if I remember correctly)Since I moved to Florida last year, my understanding I dont have to send anything to the Florida IRS (if there is an institution like that), I should only send a copy to the IRS (the Feds), correct?

Not much juice in this orange to be worth the risk.

Rather, it's set by what the CPA believes that their time is worth based on the services that they provide.