Quote from @Wesley W.: I offer them with an additional fee and lease addendum. 

Cozy was 5 stars until it was eaten by apartments.com.  2 stars now. 

I provide a 5 star experience so that there is never a reason to have a disgruntled guests.

I would slightly undercut your competition to get bookings rolling in and start getting 5 star  reviews.

RentRedi "stars" it out, so would it be appropriate to ask the applicant again for their SSN?

The numbers back him up— His construction costs are around $200,000 a unit, and his units pull in $600+ ADRs and hit 83% occupancy, with NOI per unit up to $100,000, rivaling 5-star hotels.Financing these beautiful properties?

This is SO important BP - if you are an all star investor you will have access to TONS of capital. 

There has been no noticeable difference between all 4, same income, same 5-star reviews. 

My initial thoughts were to do a free survey site and send it to the resident and then if it generates a 4 or 5 star create a zap with zapier to automatically send an email or text to leave a google review as well?

Look for the Star Bucks and Jimmy Johns to find the right type of neighborhood.