I have excellent credit and good paying job approval will not be a problem. 

I'm 53, married with 2 kids less than 17 years old with debt only from purchases on credit cards and my home.

I think they used to go up to like 80-85% CLTV depending on credit score.

Should We:Sell, take advantage of the capital gains law, move, and pay the mortgage off on the new house, credit cards, etc…?

This is much lower than the costs associated with refinancing.Benefits of Mortgage RecastingLower Monthly Payments: The most immediate benefit is a reduced monthly payment, which can free up cash for other financial goals.Save on Interest: By reducing your principal balance, you’ll pay less interest over the life of the loan, potentially saving thousands of dollars.No Credit Check or Appraisal: Unlike refinancing, recasting doesn’t require a credit check, income verification, or home appraisal, making it a quicker and simpler process.Keep Your Current Interest Rate: If you have a favorable interest rate on your current loan, recasting allows you to maintain it while still lowering your payments.Drawbacks of Mortgage RecastingRequires a Lump Sum: Not everyone has the cash on hand to make a significant lump sum payment, which can make recasting inaccessible for some homeowners.Doesn’t Shorten Loan Term: While your monthly payments are lower, recasting doesn’t reduce the length of your loan.

I looked into this as well since I'm getting terribly bent over on my w-2 taxes. 

I was there for about a year when my parents got into a terrible car accident.

WE dont pay a fee for the credit line as I mentioned just 1/2 point for each new loan..

You would want to look for an owner that has a loan through a bank or credit union or one that has no mortgage. 

Usually the numbers don't work to build in these neighborhoods, unless government tax credits, etc.Do you see the problem with your two statements:"The turnover costs could/will be high"and"How much more damage could they do?"