Wow. Historic low interest rates. That is a great time, to consider, a refi of your mortgage. Or even some investments.
Now pretty much every financial advisor will tell you not to borrow to invest, it is actually on the Securities Test. But if you can borrow money at 3-6%, what could u do with it? That equity is not making you any money.
Perhaps you could consider, stock, or commodities at all time lows? Or even consider Tax Liens and Deeds for those folks that might not pay their property tax this year. Or just lower your monthly payment.