I am going to take my landlord to small claims court what can I claim? He has made no repairs on my apt since I moved in and then he tries to monitor who comes in and out of my apt and how long they stay. He questions my teenager and guest who come to my apt. I have called the police on him since he harreses me even after I get off work at 9:00 at night.

I know that in NJ you can ask the judge to force the landloard to make repairs to your apartment. As for the harassment, the landlord can not go into your apartment. Quoting a site I reference for my questions in NJ, "All leases, whether written or oral, give the tenant 'exclusive possession' of the dwelling unit. This means that only the tenant, or members of the tenant's household, or people the tenant allows in the house or apartment, have the right to be there. The landlord does not have the right to come into the house or apartment whenever he or she wants. In a written lease, the landlord's duty to not enter the tenant's house or apartment is called the covenant of quiet enjoyment. This covenant (promise) means that the tenant has control over who can or can't come into his or her apartment or house. Cite: Ashley Court Enterprises v. Whittaker, 249 N.J. Super. 552 (App. Div. 1991)."http://www.lsnjlaw.org/english/placeilive/rent/tenantsrights.cfm#enter
I hope this helps.