Netting 30k/month isn't a small feat - especially without putting in consistent work.

We require a photo ID and a working cell phone prior to stay, and their system blocks me giving my cell number to them so they can text a copy of their license to me.

Don't cheap out on this, and don't try to take photos with your cell phone. 

These all require applicants to submit an acceptable Letter of Explanation addressing each specific issue and occurrence.Rental HistoryBecause a current landlord may say anything to get rid of a bad tenant out of desperation, we also require information for the previous landlord of all applicants…Analyze IncomeMany landlords require a month of paystubs from applicants and just use these to calculate a monthly qualifying income…Employment StabilityUnless an applicant has exceptional credit, we strive to determine their stability of employment…AssetsWe are one of the few management companies that requires a bank statement as part of our application process…Letter Of ExplanationAny time there are credit issues or we discover an inconsistency, we require a written letter of explanation (LOX)…UnderwritingTraditionally, landlords have only looked at the income of applicants…ApprovalOnce an applicant is approved, we require a nonrefundable Holding Fee to make sure they are serious…

I don't know what your budget looks like but this city is really inconsistent or "street by street."

The most frequently seen in the SEC 8 arena would be furniture rental companies, credit card companies, old landlords, cell phone and utility companies.  

At least most cell carriers will auto-block them. 

@Dan Cohen call my cell lets talk 3108966251

@Joshua Telles, you will probably see LOTS of inconsistent communication with prospective tenants.

it was explained that they use cell towers networks and cellular techology.