NEW YORK--(BUSINESS WIRE)--TowerBrook Capital Partners L.P. (“TowerBrook”), the New York and London-based investment management firm, today announced that it has entered into a definitive agreement to purchase J.Jill, a leading multi-channel fashion retailer of women's apparel, accessories and footwear. TowerBrook will acquire J.Jill in its entirety from global investment firm Arcapita and private equity firm Golden Gate Capital. Financial terms of the transaction were not disclosed. The J.Jill