Most often this is accomplished with one form or another of Regulation D506. 

Hi Blake,I'll give you tip.Here in Texas, sub-metering (and Allocated Utility Service) is regulated (in a decent fair way) by Texas Law (Texas Public Utilities Commission).The type of meters, the amount of late charges, the amount you can mark the bill up to recover the cost of sub-metering, what the lease must say, etc...You might want to check the State, Parish and city laws and see if it's regulated, and then come up with a strategy for it.Maybe ask the State Landlord Association about it, if you have one.Good Luck!

For example, an asset, real or personal, held in a qualifying retirement plan, is exempt from creditor attachment as long as all aspects of the retirement plan comply with Federal regulations and a absence fraud.

A few ideas, all of which require research and feasibility assessment as they depend on local regulations and/or affordability / demand in your market:1) add additional lots by developing unutilized land2) add storage space / shed for residents to rent for a monthly fee3) offer a cable or bundled cable / phone / technology package to residents; buy services at wholesale rates and sell to residents at discounted retail rates4) adjust rents based on size / location / views/ambience of lots in the park5) bill back water/sewer/trash, where applicable 6) offer billboard/advertising space if your park has decent traffic visibility7) lease space on property for cell tower operator 8) cut grass on residents’ lots for a fee9) paint/wash/skirt homes of residents for a fee10) fill vacant lots / vacant land with area for long-term parking for boat/RV/equipment 

Many areas will have special regulations around unrelated adults living together (aka student housing) so you should research your local regs to see what you need to comply with from a code standpoint.Also yes, make sure you understand federal fair housing laws and don't break any of those in your advertising or leasing.

People are fleeing California, taxes are getting higher, and regulations are getting worse.

The HOA rules and regulations come from Condo rules which is a creature of state law.

I called them numerous times throughout the 12 month package I bought.

However, some states and cities regulate those rentals, as well.

One is debt/liability, another is asset based which leads to point #22) financial IQ/literacy/intelligence is important as you deal with different demographics or target audience/client - single family consumer, investor of all kinds, hotel, bankers, lenders, regulations and putting all of this together for your target audience/client.