My guess it is related to owner occupied regulations, ability to pay type of thing??

(See Property Management Companies under RI DBR's Commercial Licensing Regulation 11: Real Estate Brokers and Salespersons)If they can't tell you that, then I would not do business with them because they would have demonstrated their lack of understanding RI law relating to property management, right off the bat.Also @Chandler Roman's having found that their website is a "squeeze page" whose purpose is to collect information is another not great sign.

If he is their landlord and he has something in the lease they signed.... it's different.If your local has regulations regulating basketball hoops or areas people can exercise/congregate (they can override the lease).

@Jay Hinrichs Do you think these type of brokerages will face some regulation at some point?

I am searching for items such as: Park Manager Job Descriptions 
Park Rules and Regulations 
Notice for rule violations 
Notice for late payments 
Introduction letter from new park owner 
Instructions for rent/utility payments.

I have cash but what is the best options for me to put it all in the bank without having issue with irs or bank regulation.

there are a few regulations involved.. 

As far as I know, insurance is state specific, and regulated by laws of the states.

Key factors include state income tax, property tax, insurance cost and landlord favorable regulations.

Final payment cannot be demanded until the contract is completed to the satisfaction of all parties.Signatures of all parties.A clear and conspicuous notice stating: That all home improvement contractors and subcontractors shall be registered and that any inquiries about a contractor or subcontractor relating to a registration should be directed to the Office of Consumer Affairs and Business Regulation Home Improvement Contractor Program, with the Office's address and phone number.