Wall Street’s Sullivan & Cromwell is preparing to open an office in Houston, the latest elite corporate law firm to target the city, according to three people familiar with the situation.

Texas’s decision to end the American Bar Association’s authority to decide who can practice law there is casting doubts on the viability of the organization’s accreditation wing in Republican-led states, with Florida and Ohio considering similar action.

Law firms have been moving fast to answer clients’ Venezuela questions after the US removal of President Nicolás Maduro.