Complex sentence: In 1997, Wizards of the Coast acquired the TSR properties and moved Lockwood and his family to Washington state, where he continued to work on the D&D line and on'.
Split into simpler sentences: In 1997, Wizards of the Coast acquired the TSR properties and moved Lockwood and his family to Washington state. Working for Wizards, he continued to work on the D&D line and on'.