[5] For the 2006 general elections, she was a member of the Government Plan Commission on public management issues for the presidential candidacy of Valentín Paniagua.
[10] As a congresswoman, she defended bills perceived as unfavourable to workers, including the extension of the workday, provisions facilitating layoffs, or the rejection of social security projects.
[11] Alva caused controversy by verbally and physically assaulting Congresswoman Isabel Cortez of Juntos por el Perú during a session in parliament on 11 August 2022.
[12] Cortez, a former city cleaner of indigenous descent, had moved from her seat during a discussion among some parliamentarians following statements made by Norma Yarrow of the far-right Renovación Popular party (an ally of Alva's party, Acción Popular) accusing the Castillo government of "selling itself for a plate of lentils", which caused an outcry and uproar among parliamentarians.
After receiving strong condemnation for the incident, Alva had to apologise for her "inappropriate reaction", while the Cambio Democrático (Juntos por el Perú) party called for her to be sanctioned.
In addition, López stated that Alva "[said] that he was going to destroy us and our families, that we were going to shed tears of blood", in reference to a group of parliamentarians from the Acción Popular party who were meeting secretly with President Castillo.