Senerio: I own a double with a partner that is "technically" paid off with no recorded mortgage.

Most owner occupied duplexes typically won’t technically cash flow, but spending $400 on ‘rent’ for a $1000 place still seems like a good deal!

This experience will give you all the technical skills and underwriting techniques that will be invaluable in your goal endeavor.

Reasons why:- modeling monthly returns is a major PITA i.e. high level of technical competence required- inter-year volatility including cash shortfalls is masked with annual only returns- in a live deal, you will always run into issues with reporting i.e. how do you compare forecast #s with actual #s. 

I learned so much about the technical aspects of real estate.

However, most of those GCs will allow you to perform some work that isn't too technical - such as painting.

My concern is that I have never done this before and don’t know the technicality behind it.

https://adacounty.id.gov/Treasurer/Tax-Deed#322113...So I guess they technically have until next year at the latest to auction it, but even then, 14 months seems like it would have to be earlier than the typical annual auction on the last weekend of June...

If the LLC is a disregarded entity then technically you do not change tax payers by placing yourself back on deed to satisfy lenders requirements. 

In this event it is technically OK for you to sell as the LLC and buy as yourself.