Seems more like criticism for the most part. 

These guys operate like flies on the wall.

WordPress, especially when paired with plugins like WP Rentals or a property management system, offers more flexibility for custom features like dynamic calendars, booking systems, and integrations with platforms like Airbnb.If you're planning to grow beyond a few properties, WordPress can handle that expansion better since you can continuously customize it as your business needs change.

How much net profit in general should I look for on a long term buy and hold rental property like this?

They know the law inside-out and protect you from bad renters or unique situations like the COVID eviction moratorium. 

The land is tangible and the mobile homes are considered Personal Property and titled like a automobile.

I would like to buy my investment property through my llc, and use the money to pay off my primary residence.

Check out time, where to take trash on Tuesdays, things like that.

The lower the insurance cost, the less likely a natural disaster is to occur.Low operating costs.

@Jose Saladin you will likely not get a CO (certificate of occupancy) to be able to legally rent this out.