We also have a possible Basenji/Terrier (Yorkie) mix. I've had some doubts, but seeing this picture of Rosie, I can't help but see my Rebel. Such a great looking dog, and if she's anything like our girl, you're in for a treat!
I think I see some of the basenji ears, especially in the second picture. I just want to grab them and rub them good! :) It's most likely that there is at least a black lab there too. Also it may be not the first "mix". If it is a generation over there may be more then one mix in there. But either way, Lilly is adorable! :):) It's awesome that she has a good forever home now.
You are in Florida… a sad hotbed of byb/puppymill country. Yep agree with the rest, looks basenji to me too. You might contact Pam Hamilton because she'll know if you are in the hoarder area. I'll ask her to check in here.