Yes. There will be busses running from the hotel and from the air bnbs the wedding party are staying at.
Lippincott Manor in Wallkill, NY https://lippincottmanor.com
This website is helpful and shows different ways to take a bus, train or drive https://www.rome2rio.com/map/New-York/Wallkill
John F. Kennedy International Airport (JFK) Newark Liberty International Airport (EWR) LaGuardia Airport (LGA) Westchester County Airport (HPN)
Yes! The venue is child friendly!
There is a hotel block for the night of the wedding at a discounted rate. There are also Air BNBs available - https://www.airbnb.com/s/Wallkill--NY/homes?refinement_paths%5B%5D=%2Fhomes&place_id=ChIJYYiZNLvS3IkR13nnFrjgae0&checkin=2025-08-31&checkout=2025-09-01&adults=1