One last word of advice - watch your concentration risk.

I watched a bunch of the OwnerRez videos and honestly OR and HA look eerily similar. 

But I think asking someone to fill out a prequalification application is too much.

So they invest in real estate and watch all of the great tax losses get suspended and carried forward.The short-term rental loophole avoids this issue.

I had a client who thought they did the eviction correctly, and ended up in court as one of the occupants who had moved 3 months earlier said her stuff (including 3 rollex watches) was thrown out. 

tenant pays an application fee and you can pro-rate pet rent based on their "FIDO" score.P.S.S I'm not affiliated with them at all, I am just a PM who uses their service and had good experience with them.https://www.petscreening.com/

If you're in the real estate investment business and must watch every penny, irrespective of your time, then by all means, do what you think will keep your expenses to a minimum.If, on the other hand, you are really in the business of creating profit by way of being a good marketer and a committed dealmaker, your creative energies ought to be reserved for doing what you do best (or intend to do best)...

I only lease 2-3x's a year and end up using mostly Zillow / Experian for the listing, application and screening.

How will you advertise, show, and screen applications?

In a purchase, it's declared by the borrower on the application.