Tenants who move in other guests without concent

[Robert M.]

Hello All,

In the past I have had issues with tenants applying to live in the apartments as a single individual. Later to find out that they moved in their boyfriend/girlfriend without written consent. However, this is a situation when they deny that their partner has moved in but it appears like they live in the apartment building.This may happen because of bad credit or because of criminal convictions that they do not want to disclose. How do you prevent this from happening? Can you prevent this from happening?

Thanks,

Robert