welcome Kevin
Real estate license isn't a must but it helps, gives you access to MLS etc. I'm no expert what so ever but my advice would be to build relationships and a network wether it's an electrician or a contractor even a seller or buyer because you never know when you will have to reach out to someone again. Or who might you be doing business with later on in your career.
I think buy and hold is a safer way to start and a good way to learn the business while creating cash flow. Many people will disagree but that because everyone has a different goal in life and how to get there.
Reach out to investors in your area and seek advice. Stay active on BP, read up is much as you can. Educate your self about the business.
I'm not sure what type of neighborhood you live in or what the comps are around you but don't go crazy and over do it on the rehab.
If you have any questions or anything else feel free to reach out