There is a consent form that can be signed by every interested party entitled to receive a Notice of Proposed Action but they need 100% to sign off on the sale.

That is undervaluing yourself and some investors recognize that and would be turned off.

If i purchase this HOA/COA lien i am wondering what are my options when it comes to the mortgage. i know there are 4 options for sure1) Notify the lender of the situation and payoff the mortgage2) Don't do anything, rent it out and let it get foreclosed on3) Flip the property quickly as possible before it gets foreclosed on (the mortgage will get paid off)4) Sell the property as is at a slight discount to recent comps (the mortgage will get paid off)This is the one I'm not so sure about5) Notify the lender of the situation and let me continue making the payments on the mortgage for a long term rental playmy question is, is #5 doable?

When large limb breaks off it means the tree has problems.

On paper what you're describing might sound doable - but it sounds like your perspective on REI is based off of knowledge of only the "good parts" Managing and owning rentals (yes, even with a PM & price point of sub $50k) comes with its own challenges and headaches. 

Absolutely no view, they're right off the road.

How many off-market deals did you find in 2023?

I had recently sold my house off a few months ago and regret selling.

You would be better off having two properties at 50% leverage than one at 0%.3) You lose out on appreciation benefits by having one property unleveraged when you could have four properties at 75% leveraged4) Unleveraged properties are a target for ambulance-chasing lawyers and also now fraud. 

Rather than pay for a course I suggest identifying a wholesaler in your area that is advertising off-market homes for sale regularly (at least 5+ per month, more is better).