Developer Orton Development Inc.'s major rehabilitation of 270,000 square feet of historic, crumbling buildings at Pier 70 is finally getting a jolt after long delays. The developer took control of the property last week from Port of San Francisco, signing the master lease for the property after the developer snagged a $50 million construction loan. After 18 months of delays, Orton Development will now start seismic work on the eight buildings, which span seven acres next to the Dogpatch neighborhood. "We're...