Solís was born on 21 April 1984 in Laguna Blanca, Formosa he is the son of Rosa Elisa Shalamuck, a native of Entre Ríos, who worked as a teacher.

He finished high school at the Escuela Provincial de Nivel Medio N° 22 “Malvinas Argentinas”, and then went on to earn a law degree from the National University of the Northeast (UNNE) in Corrientes.

[1] Solís began his political activism in "Formosa Unida y Solidaria", a group within the provincial Justicialist Party.

In 2015, Solís was elected to the Chamber of Deputies of Formosa on the Justicialist Party list for the majority.

[2] Toward the end of his term as deputy, in 2019, Solís was selected to be the running mate of Governor Gildo Insfrán in the gubernatorial re-election ticket.