Yes, rentals are plenty. Someone else posted links, but you're looking at around $9 for the regular chairs and $15 for the bigger chairs and the umbrellas.
Yes
Yes plenty.
Yes every beach day from labor day to memorial day. They take the rentals away promptly at 5:00 pm
Yes, umbrella and chair rentals are available from 10 am to 5 pm. You can find additional info here: https://www.belmarbeachsupply.com/
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