Lionel is a founding partner of Consortium Legal - Guatemala. With more than 38 years of experience in labor counseling and litigation, during his professional practice he has been in charge of creating and directing new areas of work such as: Criminal Tax Law, Immigration counseling to expatriates of multinational corporations, obtaining the permits and licenses for them to perform work in these territories.

Likewise, he has been the promoter and director of the compliance area focused primarily on the criminal area, thus avoiding the involvement of legal representatives in the criminal proceedings in question. As part of his career, he has developed the manual for labor inspectors sponsored by AID. He has also been a negotiator of collective agreements with unions in the electricity, sugar, banana, industrial and commercial sectors. He has been a participant in labour justice commissions, representative of labour organizations in national and international congresses.

He has participated as an advisor in labor and social security matters to national and multinational groups, banks and local companies; and as a member of three student examiners in labor matters at the Francisco Marroquín University Law School and Rafael Landívar University in Guatemala.

• Master of Criminal Law (closed curriculum), Universidad de San Carlos de Guatemala, Guatemala (2006)
• Degree in Lawyer and Notary, Universidad de San Carlos de Guatemala, Guatemala (1985)

• Member, College of Lawyers and Notaries of Guatemala
• Founding member, Guatemalan Labor and Social Security Association
• Member, Ibero-American Association of Labor Law and Social Security Lawyers -Guillermo Cabanellas