Obama Presidential Center subcontractors file fresh payment claims totaling nearly $900K

Three more subcontractors that worked on the Obama Presidential Center have filed legal claims saying they are owed nearly $900,000, adding to a growing list of payment disputes surrounding the project. The companies each filed mechanics liens against the Obama Presidential Center property, a routine legal tool used on construction projects to recover unpaid construction costs. The subcontractors claim they are owed money for structural steel, excavation and concrete, and gymnasium flooring work