Then you want to buy in solid growth markets, as I mentioned, and then also buy properties that do consistently cash flow so there may be a little wiggle room on rental income if something should happen.

For many office workers, I suspect the typical day at the office will consist of two hours of "remote" work from the car, four hours in the office, then two more hours on the drive home.

@Jordan McDonald Here are the two main ones: 1) Late rent: Be relentless about enforcing late fees because they'll be consistently late if you don't.

Buy a property that has had a tenant consistently in it since January 2016.

I run the local BP meet-up and if I could generate leads consistently I'd be selling them non-stop to the people around me struggling to get solid deals.

We obviously need to keep it economical, but I would like to do something creative, and I'm bored with our past designs (generally they consist of a larger field tile with horizontal accent stripe).

This doesn't appear to be your case though.Appraisers use a gross rent multiplier to determine the income approach in small multifamily properties.

If you have been consistently employed and are in a similar industry, you should be OK, although I've seen job switches cause problems.

Just take the rent and multiply by 50% and use that as a rough total for expenses in addition to any debt service.The numbers you have above yield total expenses of $33,575 (59% of rents so the rule of thumb isn't needed).  

Well then you take the $900 and multiply it by 12 to give you a year's total income and then subtract your yearly fees from that which is generally about 35%  (10%-Management, 5%-Maintenance, 5%-Vacancy, 15%- Insurance & Taxes.).