I see so many landlords lowing money through rookie mistakes, yet they continue looking for more doors.

That is a fairly low priority issue for the Detroit police. 

The basement is too low to be rentable SF (unfortunately!)

It's low risk and tax free on the gain.

I agree 15 years is not a long time but what is occurring is jurisdictions then pass laws to protect the low cost housing.  

Why do you think the demand is low?

She has an excellent tenant profile, but private rental home inventory is low at holiday time.QUESTIONS:Would it be too much to1. locate the owner's email or phone number and then contact them?

Is it wise to buy some units with high cash flow and low appreciation, and others with lower cash flow but high appreciation to diversify my portfolio?  

@Chris Kay it's VERY difficult to cashflow with 0% down purchases.We do 0-10% down Land Contracts and know going in we may actually have negative cashflow - which is acceptable given the low down payment and avoiding mortgage costs.

As others have noted the number of MF properties in the greater Phx area is low compared to many markets and the number for sale is even lower.