The industry veteran is bringing his team of four partners from Colliers

Keller joins the firm as SVP and asset services leader to oversee a 5-million-square-foot portfolio in the Phoenix market.

With an acquisition strategy that includes downtown Portland, PCCP recently paid $96.5 million for the nearly fully leased asset, Park Square, with a favorable mix of cash flow and credit tenancy.

The Los Angeles-based, online advertising tech firm will occupy the entire 15th floor of Global Holdings' skyscraper.