Can anyone recommend a bookkeeper or bookkeeping service in NYC.

I have a client that needs a bookkeeper or maybe a jr. accountant a few hours a month to handle some transactional work. It is a fairly new company. There are not a lot of transaction. Requires someone to set up system, do some minimal training of owner, be available for regular monthly work and for additional on call work - forecasts, etc. May work best with a service rather than an individual. Thanks.