And while grabbing an owner-occupied loan is typically a non-starter in a standard 1031 transaction, this is a mixed use property that does include a personal residence portion. 

Are they different for rental property vs personal?

And with you using one of the units as an office would not eliminate the fact that you are 'disqualified person'.

Does having an LLC simplify any of that vs doing it as part of my personal return?

I've done this with my properties because I'm well known in my small town and don't want people to know what I own.LEGAL PROTECTION: By placing your assets in an LLC, you are legally separating them from your personal assets.

To further complicate the process, this demand notice must now be attempted to be personally delivered to the tenant two separate times, on two separate days, before it can be legally posted upon the property.

Upon seeing this name again, I looked it up online and found that the person it belonged to had a number of articles from our local news station for a number of crimes, to include forgery, identity theft, impersonation, etc. 

While some less experienced Realtors may shy away from courthouse sales due to the complexities involved, I recognized the tremendous potential this presented and dove in headfirst.How did you find this deal and how did you negotiate it?

If you do not run numbers, you are shooting from the hip and your strategy is either fueled by "hope-ium", or your experience is so immense you know every input and return without running the numbers (but even the most experienced investors run their numbers).Here's the best advice I can give you: You can "run the numbers" until you are purple in the face, and you will never know what every single ACTUAL number is going to be before getting into a deal.

If they have potential I would like them to be sent over to a friend of mine (who's in sales and recently got his real estate license, he's got the perfect personality for this) to try and close the seller.