which rescues did you contact?
maybe some of the rescue people here know of others in the area. i'm in north jersey and i'm always checking Craigslist and petfinder to see if there are any yorkies being given away or in kill shelters in the area. check craigslist. I think i did see a yorkie there today that was 4 years old and needed to be rehomed.
edit: found this one in New york
http://newyork.craigslist.org/mnh/pet/1821005645.html