Welcome to the wonderful world of chickeneering!
You are very smart to be considering The Rooster Question before you get your chicks. I advise all chicken keepers, no matter where they obtain their birds, to have a Plan B already in place for What To Do With Unwanted Roos. Even if you plan to keep a rooster or two, you need to know what you'll do if you get more roos than you wish, or get a roo that turns out to be unmannerly.
Unless you purchase full-grown chickens, age 20 weeks or more, there's always a risk that your bird has been incorrectly sexed. Even professional hatcheries with their highly-paid highly-trained sexers guarantee only 90% accuracy. Some chicks & young chickens are easier to identify than others, but you can't be certain until one either crows or lays an egg.
Chicken owners also must face the reality of life for roosters, that most of them, I'd say 90% or more, have their purpose on a plate. If you're really sentimental about your young roos you might be fortunate to find someone looking for a pet or a flock husband and will want your boy birds for that. But those positions are not always easy to find, and you may have to accept their fate as food for some grateful family.
I think you will be fine with your local authorities if you order sexed chicks but some of them turn out to be roosters anyway. Once you know their sex for certain you can activate your Plan B for them and there should be no problem with your authorities or your neighbors.
For your sake, I would advise you to wait before naming your chicks and getting too closely attatched to them, knitting them Christmas stockings or anything like that. You can certainly enjoy them from the start, and take good care of them, but just hold your heart back a bit until you know they're keepers.
I wish you the greatest of success and lots & lots of enjoyment from your flock!
edited for typos