@Faith Kirk 1st you should stop using realtors, ( all do respect to them ) 99% have nothing but MLS listings and simply send you listings for you to pick from.  

Building a brick oven bakery and obsessing over the details a successful restaurant owning friend simply said one day you know, “you are the only person who is going to notice that” and she was right!!!

Simply put when i'm ready to stop working everyday the money continues to flow. 

They might do this simply to save admin burden, costs,and time. 

In my experience, it costs more time to review a contract and make it right than it does to have the attorney simply modify their own work and deliver it.

You are simply buying a property.

There is plenty of money to be had by simply doing things the right way, above board.

Would it simply be a matter of them re-filing a tenant application?

One alternative is to simply ask to extend the DD period. 

What if there's someone at the house who is simply terrified of dogs and thinks they have a right to feel safe in their own home?)