Before moving to Luanda, where Lina joined the MPLA in 1974, she went to work as a voluntary coordinator in literacy for the party in Cuanza Norte.
While in Luanda as well, she attended complimentary courses at Paulo Dias de Novais and Salvador Correia (now Magistério Mutu-ya-Kevela) from 1976 to 1978.
[1] In an independent Angola, Lina began to work at the MPLA's headquarters as a secretary of the Central Committee's cabinet for Economic Development and Planning, being under the lead of President José Eduardo dos Santos.
[1] Simultaneously, in 1992, she was elected as a deputy from the MPLA for the National Assembly, becoming, soon after she began, the President of the Economic and Finances Commission, in the country's first multi-party legislature.
[6] Only 67 party candidates were elected to the national circuit and thus, after many years in parliament, Lina became a substitute and thus was not seated for that session of Congress.