I ordered six babies from a place called My Pet Chicken--ordered all hens cause, like you, we just can't have roosters where we live. Of the six babies we ordered--one was maimed when she got here and two are roosters. One rooster was a substitution for a Cuckoo Meran--I was told the sub was a Barred Plymouth Rock. He's a Dominiques--very handsome but definitely not a Barred Plymouth Rock. All the farmers I know here-bouts say they order hundreds at a time and don't have problems like I've had with my six. My farmer friends have told me the percentage of roosters in a batch of sexed hen chicks is REALLY low but that percentage is only low if the people sexing the peeps are qualified. Apparently it's an art to sex a day old chick.
You have a very special rooster. One solution is to bring him in to sleep in a bin in the utility room or somewhere that crowing won't bother neighbors or you (of course I'd rather hear crowing than my neighbor's stupid dogs). Sounds nutz but I do it till I can fine homes for my boys. I'm new to chickens too and would love to know if there is any way to silence a rooster so he is a more acceptable neighbor? That would take care of both our problems. Aside: I think chickens like music. I play it at night for mine and while I haven't noticed them dancing, as long as that music is on, they are soooo laid back and contented. That is until the second rooster ( a bee-U-tiful Buff Orpington) started crowing (this week) my handsome Dominiques who has been crowing for weeks wouldn't crow as long as his music was playing. Testosterone is an eeeeevil thing! I wish you every luck with your chicken friends.