Communication is EverythingAmerican Airlines had to keep passengers updated through apps and alerts, reminding customers to check statuses frequently.

In some cases the lender can use that to offset the debt in your loan app. 

For small landlords it honestly does not matter.Any expense tracking app or any spreadsheet will do when you have just a few transactions.In fact the simpler the better.

While I have a VA covering this now, if you're not at that point yet here is a good free way to cover yourself for late night emergencies without being up all night with your phone dinging.1) Create a Google Voice number (free)2) In your check-in instructions, list that number as the after hours emergency only number3) In your phone settings you can choose specific apps to bypass Do Not Disturb.

The app matters less than tagging, tracking, and staying in front of owners.Agents / pocket listings:Pure relationship game.

Installed dedicated app.

How you organize it (app, spreadsheet, paper, memory?)

How you organize it (app, spreadsheet, paper, memory?)

Some common names you'll see thrown around a lot: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend you search for each of those apps online and see what they offer, how much they charge, etc.

Quote from @Robert Leitner: I have a couple properties and use Stessa as my property management app but they don’t yet have maintenance and issue tracking.