The 3rd party wasn't able to screen the applicant.

So I just rcvd a rental application from Zillow and the credit score is showing 714 which sounds good...

These are decisions to can make to subtly change the applicants to get and how long you keep a good tenant thereby affecting your vacancy/turnover costs. 5.

You should ask for that info on their application.

Lastly, have you had any applications?

For the nuts and bolts and real-world applications, I would lean on forums like these and studying or talking with other successful investors. 

What is a good system to create around standardizing rent increases where applicable / best way to communicate it to the tenants? 

Another thing to consider is are you basing the 3x rent on her initial application? 

So much propaganda they only list peer-reviewed medical journals outlining the data and conclusions http://www.dogsbite.org/dog-bite-statistics-biblio...it's not a conspiracy that most insurance companies either do not allow those breeds on properties they insure or the exclude damage done by those "vicious breeds" it's an actual, real and present danger and very applicable to the aspiring and actual professional property manager/investor.

I have an applicant who says she lived in the Dominican Republic prior to the 2 years she's been at her current address.