I'm a GA real estate investor. I want to get access to MLS listings. I'm fine with becoming an agent to do so, but don't I need a broker sponsor? How do I find a broker that's okay with me using their broker license to access MLS without actually selling real estate?
You'll need to get your license, which can be done fairly quickly, then connect with a brokerage to activate your license. From there you'll need to join your local MLS and most likely the same local realtor association as your BIC as well as pay all the fees. You'll use your license to access the MLS, not your BIC's.
Brokerages like to appear as if membership is this exclusive thing you have to interview for, but the reality is most are like a gym. Your interviewing them, not the other way around. They want as many people possible paying that monthly. They want you buying and selling property so they get a cut, but if you don't it doesn't cost them anything.
If you just want to peruse the MLS, go onto Realtor.com for free and get the latest info on listings in your area (or nationwide, for that matter.)
However, if you are serious about real estate investing, there is no better way to understand your market and find great deals, than by becoming a licensee and working it.
Get out and inspect new listings, expireds, FSBOs, and network with other brokers. I have found many of my best deals by going out to inspect a potential listing and ending up buying it myself.
Follow the realtor's code of ethics and be honest and transparent about your intentions. You may just be surprised and delighted with the leads and deals you get.