Ashley Tisdale French's ties to Hilary Duff and her family - mainly sister Haylie Duff - began well before she joined Hilary's "cool mom club" and turned heads for exiting an unnamed "toxic" mom group. As French's "Breaking Up With My Toxic Mom Group" essay for New York Magazine's The Cut continues to make headlines, which some think included Hilary, 38, among other A-list moms, her past with the Duff siblings has resurfaced. In 2016, French, 40, sold her Los Angeles home in Studio City to Hilary's older sister. Haylie, 40, purchased the lavish pad for $2.