Thank you for all of the responses. I am meeting the trainer at the training site for an eval. I appreciate the suggested questions.
Lia was great with kids before the baby. Now she nips at kids, mostly under 8 hrs old and mostly girls, if they try to come near her. She is still friendly with older children and adults.
I'll let everyone know how the eval goes. I am really happy I found this forum. Thank you!

Hello,
My basenji is about to turn four and almost a year ago we disrupted her life by bringing home a baby girl, then moving to two different states within a couple of months, and completely changing her routine. Lia (the basenji) has been great with the baby, but she is becoming increasingly aggressive with other young children. We live in north west arkansas and received a recommendation for a trainer but he is pricey and has only worked with a basenji once before. I'm worried that someone unfamiliar with breed may cause more harm than good. Do you have any advice?