https://www.hyatt.com/en-US/hotel/new-york/hyatt-house-white-plains/lgaxw?corp_id=G-DELW

When you are completing your booking please ensure:

Corporate/Group code G-DELW is input for a discount

Additionally,

On the page where you input your information, you may scroll down to the "Special Requests" menu and click to request an Early Arrival time