Recent news affecting co-op / condo buyers, sellers, boards and residents. This week, the rape victim at an Upper West Side, doorman high-rise sues the condo board, the managing agent and others after the building staff did not investigate the delivery person's excessively long stay. Plus, more on co-op price floor, the building-workers union honors its own, and why the super-rich pay less in property taxes, percentage-wise, than working-class New Yorkers. Hint: It has to do with that Dept. of Finance factor called "comparables."