Notes of condolence should be acknowledged with a handwritten note. The only exceptions to this obligation are when the expression of condolence is simply a printed form with no personal message, or when the writer asks that his or her note not be acknowledged (a thoughtful thing to do when writing a close friend, or when someone you know well will receive a great number of condolences).

There is no official time frame for writing notes of appreciation to those who have extended their condolences and kindness to you. The important thing is that you have received comfort from the many who have helped you. For some, writing notes is helpful as they work through their grief; for others it is too difficult to get much done for some time. The best thing is to work things through at your own pace. Another option is to ask a close relative or friend to write some notes on your behalf. It's up to you.