Tenant can get into disagreement with health department on costs and how to finish out.

Threatening health or safety of other residents3.

Personal care is very important for health both physically and mentally.  

Renters insurance, pet fees and policies around pets and their responsibility to care for them, late payments and terms around that, ability (or not) to sublease or short-term rent the property are a few off the top of my head.

@David Haley Hopefully your lease has a penalty for unapproved pets?

Maybe charge an extra $25.We have been pet friendly for the last 10 years, charge an extra monthly pet rent and had very few minor issues - to the point where I wonder what the majority of landlords is talking about.

Plenty of space for pets and growing your family.

A lot of the big health care companies are headquartered there which is a plus.  

Also helps with pets smells. 

Also, if you have health with similar issues yourself and how you remedied it.