I will definitely check those threads out. 

As I was working on their taxes, I noticed that cost segregation was based on $180k worth of renovations while the total rehab cost was $310k.

I think that it's pretty common that contract for deed is low downpayment, no credit check, and that owner financing is higher downpayment, more vetting of the buyer.

If I'm already going to be having to fix a lot of the main living area drywall, flooring, and balcony tiling, should I consider options to “enhance” while I’m at it to make the expense more worth it?

You should definitely check out BrightInvestor for this! 

The insurance check is based on replacing asphalt shingles.

You must check zoning to see if it's permitted in that area.

🤷‍♂️Love this post and what Scotty posted.Congrats on your success thus far.As much as I love real estate and business it never is passive and never will be totally passive unfortunately.There is always a risk component involved and a reliance on someone.There will always be that gut wrenching phone call that makes the stomach turn.It all come's down to how much is enough for someone to live a happy life.I unofficially retired at 28 and am back chasing now at 36.Parents and family are getting older and have a huge will and in a way pressure to retire my old man.A beautiful person and father.I've checked off mum and uncle from the list hahaFew more to go lolI am and always will be a "real estate guy" per se but a few years ago I asked myself this question:"How can I get the highest possible return, with the least amount of risk, without doing any work and without involving anyone else?"

Finding the right property, checking its worth, making connections, choosing good renters, looking after the place, and keeping money aside for surprises are key steps.

I didn't budge and declined additional credits.They finally sent a termination notice but checking with their lawyer regarding request of earnest money.