Here's a taste. But you should go read the whole thing.
Clearly, huge demand forled to a decrease in underwriting standards, including (among other things), a relaxing of traditional loan-to-value criteria. Moody's estimated that the gap between the Moodys LTV and underwritten LTVs reached record in the first quarter of 2007 (nearly 45%). The Moody's estimate of actual LTV also reached a record of 106.5%.
These poorly underwritten loans are still out there and in a few of short years, many of them will start to mature. Unfortunately, no lender will touch them now because they are practically radioactive. At the same time that a huge source of capital has disappeared from the market, borrowing costs have soared, making whatever capital there is out there relatively expensive. You can enlarge thea bit by clicking on it. Nevertheless, the lines going up and to the right tell the story: money is more much more expensive.
This is happening at the same time that cap rates, which were compressed down around that 6% mark, are now correcting. Cap rates averaged 8.3% between 1986 and 2008, but they fell below 6% in the first quarter of 2007.
This is a toxic mix for those New York City real estate tycoons, and the reason they made the trip to see Chuck Schumer from Brooklyn is simple: they are all about to lose a TON of money.