So I am looking for software that I can use to input all of my Buyers contact information in an organized fashion aside from the Excel spreadsheet I have now.

They may support the non-profit's intent, or be able to point you in the right direction to another locally minded source.I also know some of the people who have created a peer-to-community platform for providing financing specifically to non-profit organizations. 

Some don't even own property and just write books on theory and what they researched and read on the internet, they organize it and regurgitate it to the beginners.  

2) Are they active in any local real estate organizations? 

For me....it is much better to get the information all in a well organized package.After completing classes, you have the option of submitting deals through them, or simply working on your own.With this company, you have online classes, optional LIVE trainings, a mentor, coaches, LOTS of one-on-one support, and much more. 

Each month a different member takes lead of the group and organizes the guest speaker, venue, etc...

That's great.Don't forget to listen to the podcasts - they are a wealth of information.A great way to find deals is through networking - it may be a bit far for you to come in, but @Brie Schmidt organizes a regular meetup of real estate investors in the Chicago area.Happy investing!

looking within this organization for like minded individuals who want to collaborate.  

One organization that I have used regularly is www.narpm.orgJust find the PM, introduce yourself, let them know what you are doing/looking for and ask them if they can provide contact info for agents that either own REI property or work with REI consistently.

Organizing an LLC should be fairly easy and cost effective.