Most banks doing the refinance will require a payoff of the original loan plus any additional fees / accrued interest / penalties. 

I've never heard of anything like that, but I wouldn't be able to accrue hundreds of thousands of dollars in lawyer fees in fighting anything thrown at me. 

Also, FYI, you can't roll a tiny home on it (says the county) but you could probably build a tiny home sized home.Anyway, like I said, this is just a bonus and my curiosity has me wondering what the end buyer could do with it.  

Then I never got the notices so it started accruing late fees...The inspector called my parents who then called me lol.

Just out of curiosity, do you prefer to live in the top half of your duplex or the bottom half?

Just out of curiosity, on your first baseball house, were you able to do the BRRRR plan?  

Interest is not accrued until funds are borrowed, and then only on the amount used, not the total amount available. 

Are you accruing interest on the graduate and undergrad loans while she’s in med school?

Depending on the closing costs, it may pencil out in a year or 10...HELOCs are great because they are cheap to get and don't accrue interest until you actually use the money, unlike a refi.

@Bryan ClementIt all depend of what will make you both sleep better at night.For some people having no debt is a freedom that is worth it.For some it’s a maths equation where you can make better return on your cash than the interest accrued on your debt.