While I think I might have paid slightly above the average price, I’m happy with the installation and impressed with how quickly the installers resolved the issue.

Not sure how you cashflow with Proper, it’s just not proper. 

You want to make sure they are properly installed and you don't want tenants moving large appliances in and out of the house as it will cause damage. 

In a  Dplus area, 2nd floor unit, considering installing LVP. 

Unfortunately, I’ve run into a major issue: I received a Stop Work Notice on my property in Covington, GA, because I didn’t have the proper permits for the renovations.I want to resolve this as quickly and smoothly as possible without jeopardizing the project.Can anyone offer advice or share their experience with:1.How to address the Stop Work Notice with the local authorities?

Some townships will require certain items, like an escape window if below grade or a walkout to be installed.

2) Their contractor must be properly licensed and insured and we require copies of all this.

Place these footings strategically after you have jacked the house up to proper level.

Yes it's a huge problem.You should fix this correctly now.Open the walls and put in proper sound reducing insulation.

But keep in mind if your using money you cant afford to get back then buying action property might not be appropriate for your current endeavors and its better to just buy open market were you can do proper due diligence and know you have a build-able site.