Court appointed psych evaluation?

[winter]

I am new here and need some advice.  My SO and I are in a nasty custody battle with his ex-wife.  She is pretty obviously mentally unstable.  Is there any way to get a judge to make her have a psych evaluation before decideing on the custody arrangement

[mango]

In Ohio, they pretty much make it a court order if one of the parents requests it. But the clencher is, the person requesting usually foots the bill.

Now, if the GAL requests it, then the chances are it will be court ordered to split costs of eval. They can run costly too.