Quote from @Jim Bryant: This is why it's important to understand how the legal system works before investing in an area.

I'm happy to hear my experience isn't unique! 

This is why I stress the importance of knowing the laws and the strength of the legal system before investing in a particular market.

However, I’m increasingly excited about starting a unique stays/glamping business.

ONe its not guaranteed your renters can and do get kicked off the system for violating the policies.

Create systems and processes right off the bat.

NJ investor myself - happy to help you navigate these unique waters! 

If one or more units are vacant, the remaining units often don’t provide enough cash flow to cover expenses, making it harder to meet operating costs.Maintenance costs: A fourplex comes with four times the appliances, plumbing, HVAC systems, and other components to maintain, leading to significantly higher repair and maintenance expenses than single-family homes.If you want to see the detailed calculation, read this BP blog - More Units Doesn’t Mean More Money—Why a Single-Family Home Can Beat a Fourplex.Resale value: Multi-family properties have a limited buyer pool—mainly investors—who base their offers on CAP rates.

Highlighting unique property features is essential.

For example, one municipality local to me requires a sewer inspection because some houses still have gutter downspouts tied into the sewer system which is improper.