If I knew how to attach pictures via their app I would!

We charge a $40 app fee for each tenant that is 18 and over.

Considering the amount of units you have, I would recommend Rentaway (rentawayapp.com or on App store or Play store).

*buy itLame BP app.

So far I have an app called Acorns, it sort of helps me invest in different business.

I have started using Redfin and am finding some prospects but was wondering if other Apps or websites work better to find deeply discounted properties including auctions, REOs, etc...

If you rented to someone else, make sure you have dates, time the app came in etc.... take this very seriously. 

I had some glitches initially with licensing the app.

For me, I had voice recording apps and depending on your state law you have to notified the other person when record the conversation (I feel that when you told them "this is a recorded conversation" they will take it very serious and more than likely not to flake/ change their mind).

I've gone down the Bigger Pockets rabbit-hole that I was lucky enough to stumble across on the podcast App Store on my phone.