Two US courts have formally requested Guzman's extradition since he was recaptured on January 8, with charges of drug trafficking in California and murder in Texas.
His lawyer, Jose Refugio Rodriguez, told Radio Formula that if he is extradited, Guzman could plead guilty and "negotiate a sentence that is not long, something relatively reasonable" in a "medium-security prison."
The leader of the powerful Sinaloa drug cartel is back in the prison that he escaped from in July, when he fled through a 1.5-kilometer tunnel, humiliating President Enrique Pena Nieto's administration.
The Mexican attorney general's office has said that the extradition process could take a year.