Hello @aprilb78 ,
It looks like you're encountering an issue with the older 3ge email builder's greeting tag tool. To get around it, I'd recommend just using regular text to type our the preamble with the apostrophe, then use an insert contact detail with the first name selected. Or you can build your emails in the newer cross-device / platform editor, which doesn't experience this issue with its greeting tag functionality.
... View more