It would really depend on how well the homes were kept up. Any resale is affected by ratty houses close by. It also slides on the scale of how many homes on the block are in disrepair and proximity to the property to be sold.
Let me know if I can be of any further assistance.
I posted an article below for you to read on tenants in the City.
It depends on your location, In Arizona, it is said that over 45% of the homes in Tempe are rentals because of ASU. Tempe is one of our stronger markets right now. However in Maricopa we have a ton of rentals and it is not very pretty out there. How is your Neighborhood? Do you have a good Location?
If it`s a popular neighborhood rentals wont matter.