Rehome yourself...does this man not CARE about his own kids?

I think HE and Daisy should go and get her a 'temperament assessment'. That way he hears it right from the person themselves.

And since training involves training the owner as well - that sounds like the best idea. Particularly if the alternative is rehoming her - which will have to be made very clear to him.

You can mention it to him gently, that with the baby coming, some training might be a really good idea to help prepare Daisy.

Good luck...