Real estate shifts are easier to recognize than they are to acknowledge. One day job growth is beginning to stall and, seemingly overnight, vacancies are on the rise. Tenants start asking to downsize. Commercial property valuations level off. Negative news stories feed the worries of buyers and tenants. New development halts. Fear creeps in. Then, the market that was quietly losing ground goes into full retreat as tenant delinquencies turn into owner delinquencies and lenders sever lines o...