I've been using a combination of google contacts, excel and an app called CamCard to scan business cards. 

A mobile phone app is key so you have persistent access no matter where you are.Total operating cost (coverage, cost of exports, cost to acquire additional contact or transaction history data) factoring in assumptions in overall marketing effort and volume.

If they wanted it digitized they would just use the Open House Pro app.

Look up a local REI group and join their meetings (find them through BP or the Meetup app).

I had a friend recommend this app and I’m amazed with the feedback!

I have been using CASH app and Zelle for accepting rents and I am very happy with it.

I get that you have equity and that’s valuable, but I just can’t seem to get my head around the numbers side of it - An example would be best, so if there’s a thread with this already I’d love to see it but I can’t search on the app!

Lol, can't figure out how to edit my post through the App!

@Malik Batchelor I would suggest getting the Driving for dollars App for $20 bucks a month and save yourself a TON of time and just input the address and save it to a list you build on the APP and then BOOM there is all the owner contact info with even a Phone number.

Try https://dealcheck.io/ It's both a website and app for iOS (possibly android).