Dear Amanda,
Hope you have been enjoying the summer so far. I'm glad to inform you that my I-485 application has been approved. I will be receiving the green card very soon. I'm writing to express my deepest gratitude to you for the fantastic job you've done for my case. I sincerely appreciate it.
Wish you all the best with your work and life!
Sincerely yours,
Client
07/07/2015