Dozens of lawsuits against the home-building company Toll Brothers Inc. are set to play out in state court after the Pennsylvania Supreme Court rejected the company’s move to corral the cases into arbitration.

On Tuesday, the Supreme Court denied allocatur in the case, captioned Porter v. Toll Brothers. The decision lets stand a ruling from the Superior Court, which last summer determined that 30 cases against Toll Brothers brought by subsequent home buyers should be handled in state court, rather than through arbitration.