Executive Team


We decided to open My Sister’s Closet after asking ourselves why resale stores were always dark, dirty and dingy. Why couldn’t they look like new boutiques? We dedicated ourselves to turning the “three d’s” – dark, dirty and dingy – into the “three c’s” – cute, clean and current.

In 1991, a store was born at Town & Country shopping center in Phoenix. It was so small we considered naming it My Baby Sister’s Closet. So many customers came calling that by ’92 we had rented out a second space. Our family grew and extended its reach beyond Phoenix and into Scottsdale in 1997. Confident that what made for a great ladies resale shopping experience would translate to furniture, we launched My Sister’s Attic in 1999 and men’s apparel in 2001 with Well Suited. The latest adventure is our first My Sister’s Closet location in San Diego which opened in 2011.

Ann Siner - CEO and Founder


Ann began her professional career at PetSmart rising through the ranks to become Director of Advertising and then Director of Professional Services.

Ann decided to open her first designer consignment store in 1991 - a 1,200-square-foot boutique in the Town & Country plaza on Camelback Road in Phoenix. The popularity of My Sister's Closet quickly grew and has since blossomed to 14 stores in Metro Phoenix and now in San Diego including My Sister's Attic recycled home furnishings, and Well Suited designer men's apparel. Tirelessly committed to the welfare of animals, Ann volunteers with the AZ Humane Society and is an active board member. During "kitten season," she has fostered as many as 15 kittens at one time in a spare room at her home. Never one to discriminate, she's also fostered quite a few puppies. Ann's efforts as Humane Society board member and pet fosterer have not only raised awareness of the issues surrounding animal euthanasia, but have also given dozens of animals another chance at life. When she's not putting blouses on hangers and cleaning up kitty litter, Ann likes to travel to exotic destinations like Chandler, Tempe and the Antarctic.


Tess Loo - Chief Fashion Officer


What do you get when you combine one of the Siner sisters' sense of style with another Siner sisters' appreciation for practicality? Um, well, we have no idea -- can you ask another question? No, really, who we're talking about is the one and only Tess Loo. Tess can make a room decorated exclusively in white feel colorful and she can produce a haute couture fashion show that still feels relevant to the average soccer mom. Instrumental for many years in the development of our stores across the Valley, Tess took an absence from the wonderful world of retail to raise her daughter. Now that the littlest Loo is anything but and the nest is empty -- actually, Tess consigned pretty much everything bigger than a bread box -- she has returned to the fold to help our clients be their very best, our stores look their very finest and our continued expansion in California, and soon, online. Hmmm, choosing between spending time in 75 degree summer days in La Jolla or clinging to the shadows in Paradise Valley? Tess ain't no dummy.



Ryan Portillo - Director of Operations/Furniture Stores


While Ryan was born in Dallas, he proudly calls himself an Arizona native. His family relocated to Scottsdale when he was five years old and he graduated from Chaparral High School before attending Arizona State University.

Joining our family way back in 2004 - yes, three years before the iPhone came out -- Ryan has worked in every My Sister's Attic and managed three of those stores before being promoted to Director of Operations. He loves finding funky and unique original art, Mid-Century Modern curiosities, and anything with the Nike swoosh.

When not tirelessly trying to keep the sisters happy, Ryan reports to his three children - a much easier job, indeed. He's deeply committed to maintaining a balance between work, family and fitness. At least the physical kind. He is a rabid sports fan and participant — remaining loyal to his Dallas roots while still cheering for Phoenix's Valley teams.