I work as a marine engineer but looking to dive into the world of real estate investing.

In 2023, I had a partial property line survey performed by a local engineering firm.

Thank you. you can reverse engineering the process , most of these note company are regional or even city wide only, so someone that's offering loan in Alaska would not been able to provide the same in state of Florida for example, so there should be a license that's allowing those company. 

So, you should have a structural engineer determine if & what additional support may be needed.

I can recommend a local architectural/engineering firm (previous office was on 36st in Astoria) that is very experienced, knowledgeable and professional.All the best to you & your dad on this next chapter!

I am software engineer by trade, but have always loved and followed real estate.

The wall out of level could be some settlement , get an engineer to look at it .

You can use your favorite search engine for "terminate lease south carolina" and do some reading.

As are cellular towers, fiber, the internet, the local gas station, vape shop, computer monitors, keyboards, search engines, and just about everything else you can imagine.  

It needs structural engineers to sign off as well.