Well after checking on more time SO now has an app that will instantly record any phone calls. He can also alter it to exclude people or limit to certain people.

SO next time BM calls with a verbal threat that she refuses to send through the app or text "because then you'll still have your written proof," it won't matter.

Again in our state only one party needs to know the recording is happening.

We tested it out. I called him. I didn't hear anything that would give away I was being recorded and it was clear when we listened to it.

I've listened to some of his calls because we've been in the car. He says very little because of course he gets mad so we're not worried it could be mos construed in any way.

Would have been great to have in the past but oh well.