Upcoming: O.P.S. and EstateMAX next events + Sales! Posted on April 14, 2015July 29, 2015 by EstateMax Upcoming: O.P.S. and EstateMAX next events + Sales!. Please follow and like us: Like this:Like Loading... Posted in Charity, Estate Sale, shopping, Wholesale and tagged Advocates for Homeless Families, Antiques, Artwork, Collectibles, estate sales, EstateMAX, frederick county, Frederick Md, Furnishing, O.P.S., Other People's Stuff.