As a former President for the Corporate Housing providers association and having spent 8 years conducting and writing the CHBO annual corporate housing real estate report, you can say I am a data geek. 

Another option would be to talk to local mobile home dealerships and your local manufactured home association.

Benjamin - another low cost way to insert yourself into a proven network of Vendors, Lenders, ACTUAL Buyers, Sellers, etc. is thru a good local REIA - Real Estate Investors Association.

I use that same template and approach when I meet others with associated  client lists. 

This past month I acquired a 5plex that has a half acre of vacant land associated with it. 

Then, I reached out to the HOA association and found out that she was delinquent.

There are costs associated with purchasing properties such as earnest money deposits, option fees (if applicable), closing costs, deposits for contractors and utilities, etc. 

If you need a contract, you can try your local manufactured housing association and consult books on the topic.

I don't need pay for association fee for that mobile home.Thanks for any help,Wenjun

Good folks here in BP, but the generous take you under their wing old timers are locale in real estate investor associations.#2 read the paper linked off my BP profile 1st paragraph, how to buy a bullet proof rental portfolio.