GetRec'd said "Respectfully, this is your daughter, and what she does around the house is up to you. If you're happy with what she does, then that's all that matters.
From the sounds of what you're describing, he is deliberately trying to make her feel inadequate, which is rude, childish, and inappropriate.
As it relates to other posters telling you "she needs to do more," well....much like your boyfriend, it's not up to them, and trying to parent someone else's kid (someone they don't even know beyond an eBrandon post) is also rude.
If I were in your shoes, there would need to be a conversation with the boyfriend about his behavior. Tell him (if it's the case) that you're satisfied with the chores she's doing now, and that it's rude for him to talk about your daughter that way. Sometimes blunt works best, because we can forget how our actions affect other people. He genuinely may just not be cluing in to the way he is affecting your daughter, or you.
I hope you're able to resolve this and have a great holiday season! "
The fact that she is your daughter is not a good place to start and so if you are happy with the contribution she is making in the Home that is that.You are telling him that you are the boss and he better just be quiet . That will not go well with him and he will resent you.