Early on in my research, I'm seeing that in the state of NJ you need to have your broker's license in order to legally be able to manage other people's properties.

Only time will tell and my ability to market to my target/niche customers. 

Make relationships with brokers and they can help you find MHPs if you give them your preferences.

There are occasionally banks or independent mortgage brokers that can go up to 80% or more on LTV.

Once you find that market reach out to an investor friendly real estate broker that can guide you.

Most of us who gather data and sell lists, sell the lists for less than you can gather it yourself for as we spread the costs across multiple customers.

when you get to about 32 units you should be able to hire a Property Management Company paid out of that apartment income and have some positive cash flow.You can get hot areas to do either style by talking to brokers, Governmental agencies, popular appraisers, and 

Being in the construction business for about 30 years and having a real estate broker license in Texas for about 30 years gives me a unique answer probably regarding your issue. 

My company brokers them, and I can walk you through it or give you direction.

My mother was a residential and commercial agent and broker in NY and NJ during the mid 90s.