Prepare a power of attorney based on the old one.

Отличная работа. Сергей кропотливо приметил все детали и сделал соответствующие изменения. Все было сделано с хорошей скоростью и контактностью, что в нашем случае было очень важно.
Мы работали с Сергеем раньше, и очень были рады что опять обратились к нему.
ПРОФЕССИОНАЛ!
Все отлично!

Excellent work. Sergey has a good work attitude and attention to details, and made all necessary changes as needed. Everything was done with a good speed and communication. Both were very important in this project.
This is not the first time we worked with him, and we are glad that we decided to do so.
He is a PROFESSIONAL!
Excellent job.

I prepared the necessary document, made corrections, and answered clarifying questions. I was satisfied with the collaboration! The client is always in touch, timely payment! I recommend and will be happy to continue working together!