Rental Investment Tracker/Spreadsheet

[Kyle Thompson]

Greetings everyone! 

My brother and I are rapidly advancing towards our first rental unit. After that goes well (which I know it will thanks to all the insight gained from you all) we intend to grow our portfolio to 50+ doors of single family and multi family units. 

My question is how do you all keep track of your rental units and any information about them and how they're performing? Specifically when you have more than 1 unit. Is there a type of software I can download and/or possibly an excel spreadsheet. I'm looking to be proactive and get a system in place to track each unit's performance.

Any information would be GREATLY appreciated. Thanks in advance!