Reinforcing Nicaragua's Adherence to Conditions for Electoral Reform Act of 2021 or the RENACER Act This bill establishes measures to monitor, report on, and address corruption and human rights abuses in Nicaragua. Specifically, the bill directs U.S. leadership at international financial institutions to advocate for increased oversight with respect to any loan or financial or technical assistance for projects in Nicaragua. The Department of State and the Department of the Treasury must establish a coordinated strategy to align diplomatic engagement with the implementation of targeted sanctions to facilitate free, fair, and transparent elections in Nicaragua. Pursuant to this strategy, the President must prioritize implementing targeted sanctions on persons obstructing the establishment of conditions necessary for such elections. The State Department must also engage in diplomatic efforts with partner countries to impose targeted sanctions on such individuals. The bill adds Nicaragua to a list of countries whose citizens are subject to visa-blocking sanctions for knowingly engaging in (1) actions undermining democratic processes or institutions, or (2) significant corruption or obstruction of investigations into such corruption. Further, the bill requires the State Department to report on the involvement of President Daniel Ortega, members of his family, and senior government officials in significant acts of public corruption; Russian activities in Nicaragua, including cooperation between Russian and Nicaraguan military personnel and intelligence services; all purchases and agreements entered into by Nicaragua with respect to its military or intelligence sector; and gross human rights violations by the Ortega government against campesinos (i.e., natives of Latin American rural areas, especially Latin American Indian farmers or farm laborers) and indigenous communities. In addition, the State Department must report on obstacles faced by Nicaraguans to obtaining accurate, objective, and comprehensive news and information about domestic and international affairs and submit a strategy for strengthening independent broadcasting, information distribution, and media platforms in Nicaragua.