You can keep down on the trouble tenants by implementing and enforcing rules that deter negative behavior.I have another client that has a boarding home for "ex-prostitutes in recovery".  

But I calculated a 97.5% LTV in my head, and it led to negative cash flow.  

I have been in limbo about getting licensed because of the negatives I've heard but I am thinking with added knowledge of RE and the unknown positive possibilities through it that can arise, why not?

All we can do is help provide the possible pros and cons to help you see the overall big picture and potential impacts, whether positive or negative!

I'm sure you will hear both positive and negative on this one.

I don't believe in scathing reviews but I definitely can relate to a lot of the negative reactions to the book and the programs he sells.

MSA stands for Metropolitan Statistical Area, it is essentially the area around a city that is effected by socially and economically by its relationship to that city.

Then the market will adjust where homes in areas that are too risky just can't get insurance so will draw cash only buyers willing to take the risk on their own, and the areas that are statistically safer will become the norm for people needing mortgages, with the benefit of no surprises when/if  something happens as you know your insurance company is required to cover, maybe just a higher deductible.  

It's obvious how it would be negative for people trying to do flips, but do rental rates drop drastically at a time like this, or are they usually pretty consistent?

Are there any ways an investor can keep himself/herself from getting negatively impacted from a market crash?