Actually, Carol, the HOA for that property would be $592 per month. Yes, these properties don't stay on the market very long at all, often less than a week.
In a co-op which this is your HOA would be from $592 to $647 per month depending where it was located..
I have a brochure that discusses many of the details of owning in Rossmoor. I would be happy to meet with you to discuss your needs and answer any further questions. You might find the brochure very helpful as you try to decide whether Rossmoor is the right place for you.