The New Migration Law of 2017 was a historic win for Brazil. This moment of victory was the result of years of advocacy from various stakeholders of Brazilian civil society. The road was not an easy one, but the destination was worth it. As philanthropies routinely aim to build a better future, policy advocacy emerges as a clear cornerstone for achieving long lasting change. This article shares the lessons learnt from supporting Missão Paz and Conectas in their partnership to get the law passed. It outlines the role of philanthropic funders in going beyond investments to truly unleash the potential of collaborative action.