If it's in Texas and single-story, a better number is probably $1,500 to $2,000 for the inside and the same for the outside.Obviously, there could be circumstances that are out of the ordinary, but you didn't mention any.

However, your ex-in-laws may be subject to a gift tax return or subject to ordinary income consequences if they charged you interest on the loan.

Keep in mind for a flip, the profit isn't treated as capital gains (insert all the typical disclaimers as I'm not a CPA, check with yours), but generally as ordinary income - including payroll taxes, etc. 

While working there, I managed the service department for the company's North American headquarters.

Your flip is still ordinary income though.

We use  The American insurance group.

Try American Interstate Bank.

@Jamia Stevens What you have just layed out here is the story across many American households, so most just throw their hands up and RENT FOREVER (nothing wrong with that). 

A flip means you pay taxes on the flip as ordinary income.

@Marlon Edwards I use American General Services Corporation, they are investor friendly