Three brothers, including two who were among the country’s most prominent real estate brokers, were convicted in Manhattan on Monday of engaging in a yearslong conspiracy to traffic women and girls for sex.

The brothers — Tal and Oren Alexander, who regularly closed multimillion-dollar real estate deals in New York and elsewhere, and Alon Alexander, a security executive — were found guilty on every count they each faced, and all could now receive up to life in prison when the judge, Valerie E. Caproni, sentences them on Aug. 6.