How to legally evict a troublemaker tenant?

[Andy S.]

Requesting guidance from experienced landlords in New Jersey. 

I have a trouble tenant renting a condo from me for past 4 years. Every time there is an appliance issue, he threatens me to deduct money from the rent if there is more than 2 days delay in repair. I am very responsive to their issues and have been sending contractors for repairs every time they have reported issues with appliances. However at times it has take about 7-8 days for repair. The tenant is using this as a leverage and is threatening me to deduct money from the rent. Also there is 1 month of rent he forced me to use from his security deposit, citing covid related hardships. 8 months have passed and he has still not replenished the security deposit.

What are the best legal ways I can evict this tenant? What valid reasons I can give him without breaking NJ law? Pls advise. Thanks