While retaining a wall might help with zoning or other regulations, it could be a lot more expensive.

Both of these are SEC registered securities.However, if you weren't raising money and had other partners you wouldn't have to jump through the SEC regulations and could structure a deal differently which in turn would allow you to invest in larger deals without having to be an accredited investor.

Prior to vacation renting please check out your local regulations and restrictions on vacation rentals as some areas dont allow short term rentals.   

The kind of trouble where your talking serious penalties for violating securities regulations. 

Hard money isn't regulated and some lenders are more payday loan than a reasonable substitute for private money and traditional financing.

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.