I recommend you figure out what you want to do, then actually do it to see if you enjoy it, have some skills, etc.

Wow, you are firing off questions faster then I can read them and they are all good, but pretty general.

I would suggest that once you are done reading that book - give it about a week and read it again. 

Sejin - Have you read your fair share of books as well as listen to podcasts?

You can also search Google and read reviews.

Or recommend any builders?

I've heard some rumors of Airdna skewing data a bit (I've heard this first hand and read online.)

Read The Hands-Off Investor by @Brian Burke.

@Jennifer Turner I heard and appreciated your empathy in reading this in your post: "We know they're hard working and would like to continue working with them rather than move toward foreclosure, but we know they're in over their heads if we continue under the current terms of the mortgage and don't want to set them up for failure."  

I'm looking to purchase some land in Martinsville, VA from out-of-state, and wanted to know if anyone is able to recommend a reliable property manager that services Martinsville, VA.