Joined the politics in 2012, as City Councillor of Belo Horizonte and member of the Progressive Republican Party (PRP).

On 4 February 2019, Folha de S. Paulo reported the suspect of a scheme of fake candidacies, directing the money from public funds to companies linked to his Chamber cabinet.

[5][6] The Electoral Public Prosecutor's Office of Minas Gerais denounced, on 4 October 2019, the Minister of Tourism Marcelo Álvaro Antônio for three crimes involving lawman candidacies of the party in 2018.

[7] The Minister's indictment made by the Federal Police occurred on 3 October 2019 for the electoral crime of omission in accountability and criminal association.

In February 2019, judge Grace Correa Pereira Maia, of the 9th Civil Circuit of Brasília, rejected a request made by Marcelo Álvaro to convict the notices of Folha de S. Paulo which linked him to the strawperson scheme.