From a real estate client:

Thank you for . . . taking on my case. You handled it with intelligence, creativity, and persistence, and achieved the best outcome possible . . . . I am happy to recommend you.

From a business client:

Thank you very much for meeting with me this summer. Your consultation was both useful and informative. I really appreciate your assistance . . . .

Another business client:

I just wanted to thank you for all of your hard work on our behalf and send you a little note updating you on [company name]. I cannot tell you how much I appreciated everything that you contributed. You really went above and beyond, particularly when Kmart already had our name trademarked and you were able to convince them to relinquish it. [Name] and I have really enjoyed working with you and look forward to continuing to work with you in the future.