Under the auspices of Covenant House. They have houses in Guatemala, Honduras, Panama, and Mexico. They are very interested in receiving motivated volunteers. Prefer a longer time commitment than just a few months. Room and board.
Housing is in a group home usually.
Private language lessons with a tutor 5 hours daily. Family provides room and three meals a day. The doctor also related that a form of syncretism with local traditions is also integrated into his practice. Possibility to assist with his daily operations and observe medical and spiritual life in Brazil. No experience needed - just a desire to help out and sufficient Spanish skills to take care of yourself.