Every fool can purchase real estate, get lucky and then think he is a genius, but analyzing properties in regards to doing the math is very complicated and very few investors, including brokers, do the calculations and compare apples to apples.

There are definitely bad apples out there. 

San Diego is a great market long term, don't be dissuaded by a few bad apples.

To have any meaningful impact on behavior it would have to be an ongoing thing since most tests detect metabolites for at most 96 hrs. 2) while you will weed out some bad apples you will also drive away many many good applicants who will view the cost of this massive invasion of privacy as far to high compared to the value they'd get from living in your rental.

When you DO look into what they do with the 2x of their income that they're not paying you for rent, you're going to find a bloated car payment or two, iPhones instead of Android phones, rental payments on furniture, carried monthly balances on credit cards, fanatic brand loyalty in food shopping...my point is that they fritter their money away and are typically left with nothing, month after month.Emergency fund?

I saw myself appling for a job sheetrocking homes for $10 per hour.

Thats called investing in a tech stock and hoping it becomes the next google, amazon or apple before anybody else does.Ultimately, you have to decide what your goal actually is and then find something to fit.

It's an apples and oranges deal.

@Jeff Howard  note investing with Norris group or any other fixed income company is apples and oranges to owing the asset.  

Also, unless cashflow from your current SFH covers these utilities in full then you should not include them in your current condo calculations either if you want a true apples to apples comparison, if that makes sense.