Cremona is the founder of Costa Limay Sustainable Complex for Transgender Women, an affordable housing community.
[1] Upon joining the Carmelites, she began working with young drug and alcohol addicts and ministered to the region's incarcerated people.
[4] The complex, which is a two-story building with twelve studio apartments, was formally inaugurated on 10 August 2020 in a ceremony attended by Governor Omar Gutiérrez and Mayor Mariano Gaido.
[1] Cremona wrote to Pope Francis, with whom she was friends with during his tenure as Archbishop of Buenos Aires,[2] to inform him about the inauguration of the new housing complex, to which the pope replied, "God, who did not go to the seminary or study theology, will repay you abundantly" and said "May Jesus bless you and the Holy Virgin guide you.
[1][7] In July 2022, when interviewed by the Jesuit James J. Martin for Outreach, Cremona said: "Transgender people existed before any ideology.