If you haven't already done so, there is a nice Rental Property Calculator under the tools section to help you run the numbers.

I'm building a list of free and open source tools to help a group of friends sell their houses and am looking for input from others who also do this.SugarCRM (big fan of this -- not the easiest to use for newcomers, but provides great value when on a budget value)Wordpress (big fan here -- once we build a template to showcase a house, then we can then we can script out these installs)LAMP / LEMP -- Linux + Apache / Nginx + MySQL/MariaDB + PHP/Pearl (the platform all of this rides on).  

You can search for ones in your area by clicking on tools on the top of your page, select REI resources and under assorted resources choose local REI clubs.

The Podcasts are particularly popular

-Is there any Forecasting tool that you recommend to see what kind of return should we expect? 

Are there any good online tools to help me analyze the neigboarhood markets in Atlanta, Ga?

This is a valuable tool that you can offer to your clients in the past.

Its that 15 degree's of separation.. there was a novel ( fiction)  that was popular in the 90's called the Celetine prophecies and the upshot is you never know were a chance meeting will lead you.. but you have to MEET.. not just hid behind a computer. ( not that your hiding behind a computer ) but you get what I mean.. it takes getting out there and mixing and that one meeting could change your life..

The other neat thing with cloud products is that most have API that allows you to integrate one tool with another (invoicing/accounting tool with your CRM etc.) - i.e: your tools talk to eachother and share information automatically as you specify; automation is gold.

Since you are on the verge of becoming a landlord, below, are some links that will help with this transition.https://www.biggerpockets.com/renewsblog/2013/01/27/tenant-screening/ (Landlord/tenant screening)https://www.biggerpockets.com/renewsblog/2013/01/04/how-to-rent-your-house/ (how to rent your house)https://www.biggerpockets.com/rei/pay-rent-online-payment-tools/ (Online rent payment)http://www.biggerpockets.com/renewsblog/2012/12/09/how-to-be-a-landlord/ (How to be a landlord)https://www.fanniemae.com/content/tool/landlord-guidance.pdf (Fannie Mae landlord guidance)To be more successful, you simply have to work on the other elements to progress your REI pursuit.