You cannot speak on behalf of another person in a court proceeding unless you are an attorney. Therefore, she needs to have a lawyer represent her if she cannot represent herself. However, she can also sign a power of attorney giving you the legal authorization to make decisions on her behalf, so the attorney can speak with you rather than with her.
If you would like to discuss this further, please do not hesitate to contact me at your convenience. You can e-mail me at [email protected]
