Below are addresses where you can try & write Marisa fanmail-I say try because they are fairly old. Please LMK if you get a responce though or if you know of a more recent address.
Marisa Ramirez
c/o ABC TV
4154 Prospect Ave
Hollywood, CA 90027
Marisa Ramirez
c/o LA Models
8335 Sunset Blvd.
Los Angeles, CA 90069