Hi Belinda,
I don't think we have many quilters visiting our forum, but maybe I will be surprised.
In any case I know of a lady in San Rafael de Heredia, who is doing community service with local women in that area, they quilt and she helps them learn and also market. So that would be the person you have to reach.
I know about this group because an article came out in the Tico Times a few years ago. So I checked the latest edition of the paper and found the Quilt Guild of Costa Rica, which meets the first Tuesday of the month at 6:30pm in the Catholic Church of San Pedro. 225-9534 is the contact number.