While there are definitely house hacks that have allowed owners to live for free and show positive cash flow the current interest rates and prices make those less common.

Yes, this is quite a common practice for professional PM companies.

There is very little technical knowledge needed, but there is a lot of common sense needed.I would google "rental property investing for beginners" and see what you uncover.  

Does anyone have any input on why this may not work, as it seems to not be a common thing for the banks to enforce.- I could be successful with foreclosure and end up owning the property- Since the note has reached maturity, it cannot be made to perform again by the borrower where I am stuck with it for years.

You think through the major systems in the house (roof, exterior or tuck pointing, hvac, plumbing, electrical, unit turns, common areas) and if they are all new you should be good for a few years (5-10). 

This is so common.

Different platforms use varying data sources, algorithms, and criteria for comps, so discrepancies are common.

It’s proven very effective and just makes good common sense.

This is a common issue with investing in existing & older homes.

- Insurance policies (some may not cover rent by room)- Friction among tenants regarding common spaces