Continue writing the next sentence.

How to sign a sympathy card
Start with an appropriate salutation.
The most common way to begin a sympathy card note is to start with the word " dear. " you could also write " dearest, " or simply start with the person's name.
Avoid starting with " hi " or another casual salutation-err on the side of being a little formal. Address the person to whom you're writing as you'd normally address that person.