Rental income and expenses are pretty predictable when you know your market.

Where in a single family you have more predictable income.

I wouldn't hold on to anything that was losing money unless there was huge predicted upside sometime in the future (massive appreciation, massive rent increases in the area, the possibility of a developer buying it for a big number because it's next to a commercial area and they want to put up a shopping center... and they NEED your property etc). 

Tomorrow's predicted high is -2 and wind chills up to -35!

If you want a stable and predictable "boring" market I'd look at East Price Hill, Westwood, Delhi.

It is however a prediction.

Go home eat cold supper, call handyman and ask when he will be able to put shingles patch on rental since rain is predicted by weekend. 

Simple stuff should require a pretty predictable due diligence period.

In addition, the IRS and owners of investment rental property might as well be best friends because the IRS has made so many rules to benefit us.Related: New Study: Ability to Delay Gratification Predicts Wealth, Health & SuccessThere is a lot of useful information packed into this article.

My goal is to get to the point where I can look at a triplex or fourplex and know whether it'll pass the 1% rule or not (where the predicted total rental exceeds 1% of the purchase price).As I churn through analyzing deals, my concern is that I'm inaccurately estimating rental income of the property because each property usually has its own mix of bd/br/sq ft.