She says that her best piece of legislation was the Paternal Law Act, which established the requirements under which people suspected of being parents could be genetically tested.
[1] Upon leaving her post as deputy, Valerín earned a bureaucratic position within the Legislative Assembly.
In 2007, Valerín distanced herself from PUSC because of her opposition to the Central American Free Trade Agreement.
In 2006, joined the Unión Patriótica (Patriotic Union), an offshoot of the Citizens' Action Party (Partido acción ciudadana, PAC), formed by Humberto Arce.
Valerín unsuccessfully ran for mayor of San José, losing to Johnny Araya Monge in 2010.