WASHINGTON, Aug. 20 -- Law firms assisted companies in the following recently announced transactions: * * * Goodwin... ...advised the initial purchasers and dealers on Ligand Pharmaceuticals' upsized $460 million convertible senior notes offering, and on the associated bond hedge and warrant transactions, which are intended to mitigate equity dilution. The Goodwin team was comprised of a product team including Jim Barri, John Servidio, Kim De Glossop, Jon Burr, Benjamin Drai, Benjamin Colao,  more ST