It's for yourself because unless the judge orders the psych eval it will not be any part of the hearing. The judge basically looks at any proof that you are being incompetent in looking out after your parents best interest as the Trustee or whether they were manipulated into picking you as the Trustee. If the judge doesn't see proof of the claims your sister is making & that there is no actual proof that change needs to be made, a psych eval has no point in the process.

If the hearing goes against you then ask the judge for a psych eval & appeal.....but if it actually is just her questionable self serving motives, judges are trained to see through that kind of crap.

An unofficial verbal opinion is really a waste of money since it is really irrelivant to the outcome of the case & if it does become relivant then the judge will require it & it will be formal & she will have to pay for it as part of her court costs.

Why she does something is not important....what she & you are DOING is what court looks at. The judge looks at FACTS not at personalities.