Tracking returns, tax related indices on rentals

[Justin Sandall]

My first rental property is doing great, cash flow positive from day one with a great renter.

It's easy to keep track of income/expenses etc. on Quicken for Mac right now, but soon we will be looking to investing in another rental. I anticipate that keeping track of everything I need to for tax purposes will be more complicated. Do you have any recommendations on how to best do accounting for multiple properties (i.e. a particular program or speadsheet that can be purchased).

Also, do you know of any sources or programs I can use to help keep track of returns and other indices an investor would be interested in? I'm not exactly sure what all those would be or how to calculate them.