Selena Gomez’s lawyer didn’t mince words in his response to the lawsuit against the singer and her mother, Mandy Teefey, regarding their mental health company, Wondermind. “The allegations that Selena Gomez engaged in any way whatsoever in any purported ‘fraud’ or other wrongdoing are completely meritless, both factually and legally,” Gomez’s attorney in the case, Mathew S. Rosengart, said Saturday in a statement to Page Six. Rosengart vowed to “vigorously defend these false allegations” and stated they “indeed are filing a motion to dismiss the baseless claims” against the pop star. Gomez, Teefey and their former business partner,…