At first glance it would seem to be better to let GAL do their thing. Also likely best to work on getting a second opinion, vice getting rid of an opinion that you don't like.
I have had conversations with other T's that initially lead me to this conclusion. They would ask these questions.
Oh..another thing is rather than asking if he thinks alienation is going on, to ask if he has "ruled out" parental alienation.
He said he did rule it out based on the things I said above about the kids not sounding scripted. After I met with him, I found the information from Craig Childress on how to evaluate for alienation.
Also ask if he has "ruled out" various things (such as personality disorders) in your wife.
I did. He thinks its wrong to label people with PD's. He specializes in ADHD and seems to have no problem labeling people with that.
How are you getting this information on the GAL? Your L perhaps?
Some stuff he asked me directly to provide. We started out with a face to face meeting to get started.