The male applicant has minor speeding violation  but the female applicant has 3 traffic violations including no registration card etc.

My rule on the above is every ADULT in the household must fill out an application.

B: 2 big dogs C: can't seem to grasp the concept of "your application is incomplete"D: four adults (couple, In-Law, and aunt) and 3 kids total.

whether the verbiage is in the contract or not Georgia courts have a habit of favoring the tenant when it comes to push a snd shove, especially a female tenant.

I can think of a few buildings that are condos but no self respecting adult would live there.  

All adults did not complete their application so you can't proceed with considering their application.

@Andrey Y.There was more than one female that talked about this.

For example, my city allows no more than 3 unrelated adults.

Fair housing laws are federal, and then some states add additional protected classes.You can say that someone who is younger than 18 may not sign a lease with you, because they aren't an adult yet.  

@Max Tanenbaum excellent point about the puppy vs adult and the landlord reference.