Above: Landlord Mahmood Khan walks out of 2123 Oliver Ave. North, one of the properties that made the city's list (Jeff Wheeler).

The list of the city's worst rental properties is gradually shrinking.

We wrote in November about a new effort at City Hall to track the city's most problematic rental properties using data about poor conditions, police calls, unpermitted work and other metrics. Click here to see the full criteria behind the scoring system.

Property owners with properties on the list must meet with inspections staff and develop a plan to fix the problems before they can obtain additional licenses.

In the third quarter of 2014, the list featured about 124 properties. The latest list, from the last quarter of 2014, features just 75 properties.

Regulatory Services chief Nuria Rivera-Vanderymde, who spearheaded the list's creation, says she is cautiously optimistic about the trend downward. "I'd like to think it's having an impact," she wrote in an e-mail.

Since some buildings are owned through seperate LLCs or individuals, Regulatory Services also seperates them by owner and management groupings. The groups with the most properties late last year were Bashir Moghul, Nam Nguyen Management and Mahmood Khan. The city is in the process of revoking Khan's licenses.

Below is a map of the properties. The yellow houses indicate properties with more than four units.

Here is a full spreadsheet of the fourth quarter "Good Cause" list.