Detroit-founded Clark Hill expanded to the East Coast through a merger in 2013. Now the firm is heading west in the same way, as it is poised to announce its acquisition of Morris Polich & Purdy, a nearly 100-lawyer firm with offices in Las Vegas, Los Angeles, San Diego and San Francisco.

The union will create a firm with nearly 450 lawyers in 16 offices stretching coast to coast. Clark Hill, which ranked No. 167 on The Am Law Second Hundred, brought in $150.5 million in gross revenue last year and had 348 lawyers before its most recent merger, according to ALM Intelligence.

John Hern Jr., CEO of Clark Hill, said that if his firm had combined with Morris Polich last year, the combined entity would have brought in about $185 million in gross revenue, which would bump the firm up to around No. 150 in the Am Law 200 rankings.