I'll agree with most posters here (and kudos on just letting some not-so-helpful comments just roll off your back, no need to waste energy there).

The architect had two closets and a small but very efficient bathroom.

Weed out the dilapidated MHs (which from the outside is most of them) Sell off as many MHs as possible striving to be that no park owned homes kind of place to reduce the maintenance costsHire professional management which should ultimately make the park more efficient therefore creating more cash flowDress the place up with some landscaping, maybe a new sign at the entrance, an overhang for the mailbox area, maybe a play park to really make is a classy family community.... basically whatever will make it appealing but still cost effective instead of the junk yard it is nowThere are roughly 5-7 of the approximately 9 acres for sale that are undeveloped.

Depending on how you came across the 'deal' you have to understand that the seller won't want to waste his time, effort, and energy disclosing information on the property, providing you a tour, and also giving you his financials to someone who doesn't have the ability to purchase it.

Anish,Investing 600K to get $100 cash flow doesn't sound to me like a good plan :)I think you can invest it much more efficient if you just look out of state.It will give you a much better price to rent ratio, plus in many states, laws are landlord friendly and not tenants friendly as in CA.If you want to learn more about out of state investments please feel free to check this meet up group:meetup.com/Los-Gatos-Real-Estate-Networking-Meetup/

Operating expenses are very low because I use gas dryers (instead of electric), tankless water heaters for hot water, and high efficiency, front load washers to save water.  

It was an enormous investment of time and energy, and we sold when I simply couldn't make the time for it among the many other things in our lives.

Quite frankly, I'm contracting back into this market and trying to get rid of all my out of state properties because I find it much more lucrative to focus my time and energy on the abundance of real estate we have right here. 

Check and proactively replace all of the toilet flappers and check flushing mechanism to make sure its flushing efficiently. the flapper(s) could have likely degraded and the bad seal might slowly leak into the bowl and cause a frequent refill of the tank. flappers usually need to be replaced every 5 years anyway since they degrade. toilets have always been a cause for high water usage in one of my condo buildings.

Highly energy efficient home.