[2] She currently leads Lo Justo por el Perú, a self-described radical centrist party alongside Flor Pablo, annexed to First The People – Community, Ecology, Liberty, and Progress.

[3][4] Born in the southern region of Tacna, Pérez Tello pursued a law degree at the University of San Martín de Porres, graduating with honors.

[5] At the 2011 general election, Pérez Tello was selected as Pedro Pablo Kuczynski's second running mate in the Alliance for the Great Change coalition ticket, which included her party.

[6] During the first part of the presidency of Pedro Pablo Kuczynski, Pérez Tello served as Minister of Justice and Human Rights, from July 2016 to September 2017.

Pérez Tello unsuccessfully ran for the Lima City Council in 2010, as party leader Flores was defeated by the leftist nominee, Susana Villarán, in the mayorship race.

In December 2010, Pérez Tello was nominated by her party as Kuczynski's second running-mate in the coalition, alongside the non-partisan former Vice President, Máximo San Román, as first running mate.

She made her decision public on social media, wishing the best of luck for her party in the coalition and declaring her commitment to finishing her term without any distraction of sort.

[10] On July 15, 2016, President-elect Pedro Pablo Kuczynski announced Pérez Tello inclusion in his first cabinet as Minister of Justice and Human Rights.

[13] On September 17, 2017, Pérez Tello tendered her resignation alongside the entire cabinet, as Prime Minister Fernando Zavala's vote of confidence was not approved by the fujimorist-dominated Peruvian Congress led by the Popular Force.