i.e. how do they arrive where they do on analysis...

Here is my experience, and what I regret: https://www.biggerpockets.com/forums/922/topics/1133476-hous...As far as analysis, house hacking has a different metric in my opinion. 

As a limited partner, you would be able to participate in the project without being involved in the day-to-day operations, while benefiting from the potential profits upon completion.If this sounds like an opportunity you would be interested in, I would love to discuss further and provide additional details on how we can collaborate.Looking forward to connecting soon.

As I studied earlier, the first thing you should do is marketing, then get a call and do a property analysis to understand if it's profitable for you, then meet with the seller and sign all the necessary papers, then if there is a debt in the bank we do a reinstatement quote, then do a title search to check if there are any hidden debts, if everything is fine we look for an investor or flipper and sign an assignment of contract with him and wait for closing to get our money.

The buffer is built into the conservative analysis. 

Without going into too much detail, my current situation stems from selling a previous company via partial owner financing, only for the new owner to default on the purchase, leaving me in this position.For traditional financing, I understand I’ll need at least one, if not two, years of solid credit history, tax filings, and other financial documentation.

To any experienced investors willing to show me the ropes a little more in detail be more then happy to message me, I live in the Southern California area to be a little more precise.

You would need to do a detailed write up of both you and your brothers situation to get any useful info from here.  

You've given me some solid pointers/items to take into consideration for future deal analysis, so thank you for that.

I don't know if this is actually in an A or B neighborhood, but would a duplex like this interest you: https://www.realtor.com/realestateandhomes-detail/116-Regent...?