Bethesda-based commercial real estate services and finance company Walker & Dunlop Inc. structured three loans Thursday in the amount of $85.95 million for a four-property portfolio consisting of two Class A office buildings and two industrial warehouses in Phoenix, Tempe and Scottsdale, Arizona. Based out of the Company's Phoenix, Arizona office, Senior Vice Presidents Jim Pierson and Keaton Merrell led the team in arranging the debt…