Holding deposit to reserve a rental legal in New Jersey?

[Shefali R.]

We want to ask a prospective tenant to pay a non refundable 'holding deposit' equal to one months rent to reserve an apartment in NJ until lease signing. deposit would be applied to first months rent. Need help with following: 

1. Is this legal to receive in NJ? could not find anything in the truth in renting document 

2. does anyone have a sample receipt/acknowledgement one page document that both parties sign in this scenario. customized to NJ if possible. 

Thanks so much!