Tori,
That sounds like a good decision.
It will give you some peace of mind.

The bullying, know-it-all and "I'm right" attitude that you are getting from your spouse over this should be setting off alarm bells.

But it is so easy to start to doubt yourself when so much money and emotional investment is involved.

Getting a 2nd opinion is sensible and rational. Keep to your path of doing the best you can do in a very difficult situation.