Some people will pay out of pocket to unload an unwanted property.

I'd much rather a tenant report the unwanted presence of a creature so that I can have it respectfully relocated than deal with it themselves.

Maybe you could pay them a fee for their unwanted leads.

If he's not then it's up to you to decide if he's gonna cause you to lose a tenant or cause you unwanted drama.

Slum: 1. a squalid and overcrowded urban street or district inhabited by very poor people.Squalid: extremely dirty and unpleasant, especially as a result of poverty or neglect.squalid and overcrowdedurban street or districtinhabited by very poor peopleOf note: the definition does not include the words "crime".

Clearly you saw  the immense importance of doing the unpleasant to have the long term benefits of the few. 

Another Unwanted Vacant Land Deal Turned into Cash.

Northern Wisconsin is full of fantastic “unwanted” rural land deals.

For a small investor, a park or court requires close management, sometimes unpleasant interactions and definitely the ability to improvise; more so than other residential types.

I have even seen vacant houses that are apparently unwanted by the borrower get postponed.