In 1946, when Lamas was appointed president of the Conselho Nacional das Mulheres Portuguesas (National Council of Portuguese Women - CNMP), Lopes de Almeida became editor of that magazine and also wrote short stories and reports for the magazine O Século Ilustrado.

A year later she was one of the early supporters of the Movement of Democratic Unity (MUD), a quasi-legal organization set up after World War II in opposition to the Portuguese Estado Novo dictatorship.

In 1969 she was a candidate for the Comissão Eleitoral de Unidade Democrática (Electoral Commission for Democratic Unity - CEUD) for the national assembly, although with no hope of success as the elections were controlled by the Estado Novo.

[1][3][4] After the Carnation Revolution of 25 April 1974, which overthrew the Estado Novo, Lopes de Almeida headed Radiodifusão Portuguesa Internacional, visiting several Portuguese communities abroad as part of her work.

[1][5] In later life she devoted herself to the problems of the elderly and was a founder of Fundação Sara Beirão / António Costa Carvalho in Tábua in Portugal'’s Coimbra district.