This info will give you a decent idea of what to expect and help filter down your search to a few cities.Some of the metrics that I find valuable to understand are:- Population - Home Values- Household Incomes- Rental Vacancy Rate- Homeowner Vacancy Rate- Poverty Rate- Educational Attainment Rate (High School/GED & Bachelors)- Number of Housing Unit- Rent to Income Ratio- Rent to Price Ratio- Population on SNAPS (supplemental nutrition assistance program) percentage- Property Tax Rate- Median Age of Buildings- Number of Structures by Units (SFR, Duplex, Triplex, Quadplex, etc...)- Median Rents by Number of Bedrooms- Unemployment Rate- Employment Sectors Percentages These are just some of the indicators that will help you understand the quality of an area as well as the kinds of returns one is to except.

Insufficient Capital Reserves.

I want to read: - Three business, real estate, personal finance, nutrition, and physicall fitness books.

you could help tremendously with financial support, providing them with the best possible care and nutrition… that would make me happy!

Buy a few books on nutrition and diet that are actually backed by science, and design a diet around your research as much as possible.

Next thing you know, they'll be making a law that banks can't turn down a loan applicant for insufficient income.

Insufficient, unstable, somewhat non-garnisheable income. 

In cities where ADU's have a history there has been no over-saturation of them, which is why there was no heartburn by legislators to amend the bill with a sunset provision to the issue.Thirty years ago in my city developers were allowed to knock down a SFR and replace it with a three-story 8 unit behemoth with vastly insufficient parking.

Insufficient advertising, too high of a price, tenant screening, horrible property, etc.

You fail to use a buyer's agent and get insufficient disclosures and maybe much worse.