They are not an investment advisory firm. They have no licenses. There is no such investment advisory business registered with the State of New York or with the NASD. It is a scam. This is not so hard to understand, is it? They aren't even incorporated in New York as they claim.
Please explain how an organization that has been around for 50-years cannot be found with the most simple forms of lower level DD such as a quick Google search.
Don't you think that with that many years in the business the names of the Principles would be plastered all over the Google search?