 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of Domtar Corporation NYSE: UFS to Paper Excellence for 55.50 per share in cash is fair to Domtar shareholders. Halper Sadeh encourages Domtar shareholders to click here to learn more about their legal rights and options or contact Daniel Sadeh or Zachary Halper at 212 763-0060 or or The investigation concerns whether Domtar and it 