Hi Louis,
Here's the website that tells you about the various licensing requirements for Michigan:
Michigan Broker Licensing
Here are the steps involved in getting your salesperson's license:
Michigan Salesperson Licensing Steps
Looks like you will need a sponsoring broker to back you before your salesperson's license approval is finalized.
That "online broker sponsor" thing in Texas is wild. I've never seen that before, and I wonder if this is an option available in any other state.
The idea behind the requirement for a broker sponsor seems to be that a salesperson cannot act on his/her own due to lack of knowledge or experience. Thus, the legal requirement for a sponsoring broker, who is held responsible. It would appear that these online sponsors are taking a tremendous liability risk be allowing virtually anyone who passes a salesperson's exam to effectively go out there and do whatever seems ok to them. I've never read the fine print on these arrangements, but at least around here, "sponsoring broker" means just that, and that broker will be held to answer for the actions of his/her salespeople.
Anyway, all that aside, let's look at your original question: does licensing make sense if you just want to out and flip properties for yourself?
For the answer, you need to do a cost/benefit analysis. Consider the cost of licensing courses, exam fee, licensing fee, renewal fee, continuing education costs. If you want the benefits of MLS, there will be a subscription fee and sometimes more (such as separate listing fees), depending on the requirements of whatever MLS you join. If you affiliate with a sponsoring broker (which as a salesperson, you will legally need to), that broker may have his/her own set of fees. Also, as a licensed person, you will be assumed to have "superior knowledge" in dealings with principals in your flip deals, which has the potential to come back and bite you if for example you purchase a property way under market price from someone deemed to have inferior knowledge. There might also be legal requirements for certain disclosures you'll need to make when doing your flips.
In return for all that, your main benefits would likely be access to the MLS and a discount on buying and selling commissions for your flips. How many transactions per year will you do? Add up the potential commission savings and see if it's worth it. My guess is that unless you are doing a lot of transactions per year and/or you are flipping some expensive properties, the costs will outweigh the benefits.
There are lots of extremely good reasons to become licensed, as I explained in one of my other notes. I did, a while ago, and am very glad I did. But it may not be an optimal strategy for a novice real estate investor merely as a mechanism to save a few $$ on flips.
Sorry for the length of this. I think I need to start a blog to put it all in one place. This seems to be a question that comes up often.