If you've not read Debt Cleanse, you should.

. - I will ding their credit such that all credit cards and other debt will cost them more.- I will keep their security deposit for funds owed.- I will do my best to garnish future wages until their debt to me is paid in full.This has worked 100% time so far.  

I really like Lease to own option to get into deals without having to take on massive debt.

Of course the high crime statistics cannot be ignored in these cites, however I'm planning to buy only in the nicer/low crime neighborhoods which hopefully eliminates most of the crime risk.I was wondering if any of you could provide feedback on comparing these 3 cities.

That eliminates most investors right there. 

Holding the new property until passing offers a step-up in basis, eliminating deferred taxes for heirs.

If you don't meet that 12 month seasoning requirement and/or want to hold the property under an LLC, a debt service loan may be a better option.

Financing your second property can be tricky since lenders may only count 75% of rental income toward your debt-to-income ratio, so get pre-approved early.

The owner does not want to extend the debt for 30 years.

If not, these are liabilities and wouldn't advise adding debt.