A Michigan-based art gallery has a not-so-flattering exhibit that keeps growing: a collection of lawsuits.

Park West Gallery, which bills itself as one of the world’s largest art dealers, is facing several class actions and one individual suit from consumers across the country, alleging it duped them into buying phony art during auctions aboard various cruise lines. Now the Southfield, Mich.-based company is facing a seventh lawsuit, this one accusing it of defamation of another company that is investigating Park West.