@Damien Lee Congrats on getting ready to take the plunge! It is good that you've been able to narrow down budget, property type and area. While I've seen a lot of people interested in investing in Milwaukee, they are most often from the Bay area since it isn't practical to invest there due to extremely high property values. I wouldn't have expected the same from Atlanta since I'd always thought that was supposed to be a more affordable city if not other parts of the state (Savannah or Athens). What made you decide to pick an out of state city you've never been to over options closer to home, especially for your first property? I'm not overly familiar with the real estate market in Georgia, although it seems like many parts of the country are seeing big rises in home prices lately.
You mentioned wanting to get used to the flow of being a property manager. How much of the property management are you planning to do yourself given the distance?
To learn more about the Milwaukee market, I'd highly recommend Marcus Auerbach's YouTube channel. He has a variety of educational videos that are very beneficial for folks interested in purchasing properties, including rentals, in the greater-Milwaukee area. He has videos dedicated to the different types of duplexes in the city, the best neighborhoods, and detailed updates of the local market with lots of stats. He is also very active on the BP forums and you can see a lot of the valuable insight he shares on the Milwaukee Real Estate forum.