Thank you John, this all aligns with my thinking. She has been freediving with me in summer to shallow - 10 ft depth. We have been also our with her in the quarry sitting in a 3 ft water in the 5mil suit with lead and breathing off a long hose so you are absolutely correct it has to be done to build the comfort.
The deal I made with the shop is they will do the pool sessions in the fall then I will be going with her to the pool over the winter and build her confidence diving it to 15 ft (max depth of the pool) and she will do the checkouts in summer (local lake - 25 ft max).
I am even thinking to rent her a BCD for the pool sessions if it's easier then move her to BP/W. The shop mostly certifies in Jacket style but they are not opposed to BP/W.