I don't know whether that number is actually correct, and I'm not going to invest the time to find out. However, the appropriate amount of leverage depends on the particular circumstances of the company. The investment banks were more highly leveraged than 2100, and for many years that enabled them to generate huge profits. But later on, it almost destroyed the economy of the United States.
If your focus is on downside risks, it would be better to stay out of NYMT. If you have sufficient knowledge of economics and finance to recognize the circumstances under which NYMT can flourish, then it could be a great investment.