Hey @Logan Barwick, I personally like option 1, but this depends on what your strategy is to grow your real estate portfolio.

The increased cash flow would make such a substantial difference in your daily life that not paying it off would be foolish.Outside of that, I can't see many reasons I would take a 15% tax hit to save 4% on a mortgage, which is really only effectively about 3-3.5% depending on your tax bracket.

It depends on management style I guess.

rates are going to be 10 to 15% with points of 2 to 10 points depending.. then you have to have the money for the infrastructure .. 

Success still depends on your effort, discipline, and ability to execute.

It all depends on your specific circumstances and I think getting other's opinions is helpful but what works for YOU?

It is more dependent on that than your experience.

All depending on perspective.I would take it with a big grain of salt, I think Opendoor is trying to drum up interest, given how many properties, they and other institutional buyers, are having on the market (e.g.

It's worth a conversation.IF you determine that selling is the way to go, $1M could buy you a comparable property in Scottsdale, depending on where in Scottsdale you'd like to be, and how much land you want on your lot. 

@Ian Kibbe digging down the basement is pretty pricey and it depends on the existing footing and the state of the existing foundation.