Did my FAA ATP at Flight Safety Farnborough a couple of weeks back. They were very good and I'd recommend them to anyone looking for a venue to take the written. If you're flying a type for which they have a simulator they can probably combine your EASA recurrent training with the FAA checkride.
I don't believe you need the required hours before the written, nobody asked me before I sat the test. Before the checkride however we spent a good bit of time checking my log book and filling in hours on a form.
Happy landings
3 Point