Managing Properties Remotely - What Tools do you use?

[Nitin John Abraham]

HI all, I own about ten doors in the Kansas City Area. They are being managed by 3 Property managers. My questions for all of you is how do you track your properties:

1) I use Trello to track each of the properties and information such as the below item:

1. Address, Parcel Number, utility info, mortgage info, property tax info, PM info

2) I use a XL spread sheet to track expenses to date, repair costs, monthly rent 

3) I use the BP rental calculator for cash on cash return and NOI

4) I use dropbox to store all my purchase docs, mortgage statements, repair bills etc.

The challenge is the maintenance of the spread sheet everytime I buy properties and to monitor trello for actions that are due etc.

Any suggesting on automation/software to use where i can track all of the information on my properties?