I don't know the answer to your question; however, I do know seafood is a prominent fare at Mary Mahones. Depending on your mother's allergen severity, she will be exposed to dishes being served at adjacent tables, passing by on server's trays, and the unavoidable accompanying fragrances. I hope it works out for you because it's a great restaurant.
I would call them during non peak hours .That place is seriously up town
No idea--better call them
If they can't accommodate you I would try the White House or the white pillars restaurants
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