MehaffyWeber, a civil litigation firm with offices in Austin, Beaumont and Houston, is adding a fourth office in Texas by expanding into San Antonio after absorbing five lawyers from local litigation boutique O’Connell & Avery.

Keith O’Connell and Ernest “Frank” Avery joined MehaffyWeber as shareholders in San Antonio, where David Coates, James Goldsmith Jr. and Elizabeth O’Connell Perez have come aboard as associates. The merger boosts MehaffyWeber’s head count to 40 lawyers.