For both tenant and landlord peace of mind, the property had an extensive video surveillance and security DVR system already installed by the prior owner, which covers outdoor areas and indoor common areas and records 24/7/365, as well as sensors for excess dB noise levels.

If a property is owner occupied there is additional leeway that you have, for example certain laws that would apply to a traditional landlord would not apply to you if the property is your primary residence. 

I will leave landlording section 8 to others.

This gives you experience as a landlord and minimizes housing costs while building equity.

There are solutions for regular noise issues that don’t involve the landlord.

What makes NJ good is being in areas with favorable land lording laws and proximity to transportation/NYC. 

Deja, In my experience a landlord who is exiting the business or wants to flip their SFH to level up to multifamily may offer a package deal. 1.

Previous landlord review was positive.

Or is it okay and perhaps best that all monies go to landlord/owner and they pay out?

Keep in mind any premises liability, landlord tenant, contractual dispute with a vendor that performs services in CA will be  resolved in CA if that's where the real estate is owned and operated.