He has led the agency for over 40 years and spent most of his professional career at UMOS. Mr. Martinez is dedicated to advocating and providing programs and services to improve employment. provide education opportunities as well as health and housing supports for UMOS clientele whether they are migrant and seasonal farm workers or other underserved populations. Lupe Martinez has always gravitated toward leadership roles even as a child. he was one of 10 siblings in a family of migrant workers and accepted the responsibility of paying bills and managing the family finances. Today he manages the largest Hispanic nonprofit organization in Wisconsin and one of the largest in the nation. Mr.