I am aware that if the property gets sold at higher amount than the upset price, the surplus amount is used to pay off any junior liens and the left over goes to the owner.Will the surplus amount be used to pay off property tax liens and HOA liens? 

Some of the adjustable products, the payment stays the same, but the principal to interest allocation changes to the point where people are only paying interest and are now in a negative amortization where the amount they owe is actually going up.

Give it a solid 2 weeks before you sign up for anything or pay anyone any money. 

It's free, no pay wall etc.

Typically, tenants will pay all utilities on long term rentals, so that comes off your plate.

No one pays rent.

Going to meet-ups and telling people you are looking to invest in multifamily is good way to find a mentor if you don't want to pay for one.

Repeat: You use the $150k to pay off your initial investment of $100k purchase price + $50k renovation, essentially getting all your invested money back to move on to the next project.

Naturally I would also have to keep buying assets as to prevent having to pay taxes on my annual income of $1M.  

I read your post and everyone else's here and not one person knows how much protection you currently have in place.As someone who was accustomed to thinking (mostly) "offense only" I can unequivocally say that the best offense means nothing without good defense.Offensively, you seem to be well positioned offensively.It's hard to say what to do next because we only know how your offense is set up.What happens to you or your wife's plans if either of you lose your high paying W2?