We frequently get asked about the rules for evaluating a potential tenant who has a service animal. As such here are two articles that can provide some guidance if you find yourself in this situation.
The first is a link to the 2013 HUD guidelines regarding Service Animals.
The second link is to an article a Colorado based law firm wrote about this issue.
As always, please consult your attorney when making any decisions or policies regarding the accommodation of persons with service animals as the laws may have been modified or changed.