It turns out that even the well-off need help in a housing market as crazy as the one in the San Francisco Bay area, and lenders are elbowing each other in a rush to provide it. They’re courting Silicon Valley workers with tailored loans, guaranteed 24-hour approval and financial-planning services. Social Finance Inc. has deals with Google and other top technology companies that allow it to market to new hires. First Republic Bank -- which gave Facebook Inc. billionaire Mark Zuckerberg a 1.05 percent interest-rate mortgage -- has opened branches in Facebook and Twitter Inc. headquarters. San Francisco Federal Credit ... (full story)