Hi Mr. Mai,
As you know my I-140 approved, I really want to thank you your assistance and help to make our progress very efficient.
And also your suggestion to file all the documents concurrently.
Now it really relieves our worries and makes our lives here easier.
I will send the check ASAP and please let me know if there is anything I have to do for the further steps.
We can't make it without your help. Thank you!!
Wish you all the best.....
Sincerely,
10/20/2013