I would roll one into another as each paid off.

As far as I know, you can deduct off your W-2 income if you are a real estate professional. 

Thanks to strong bookings and smart management, I recently paid off the entire HELOC!

I have a good cash flowing portfolio that has appreciated extremely well In the last 10 years, it’s a small college town off the radar,   and I know it’s a unicorn situation to find deals that are in markets set for great appreciation, and have solid cash flow, but I know there’s more out there! 

How long would it take before a 75% cash-out refinance allows you to pay off the mortgage and have enough cash for a 25% down payment on another property priced at $350,000?

Trading off current cashflow for principal payoff in the future?

If you're thinking about selling it, you'll probably be better off selling a vacant then with a tenant.

My mother-in-law is saying that my wife needs to sign off on the loan.

I don't remember the exact cost when I did it but I remember thinking it was cheaper than expected.I didn't see a comment mentioning that you should just include utilities in the rent and increase it based off that so I'll be that guy.

I see so many getting ripped off, its sad, All the best