No one knew those you listed would not be good bets before they weren't. 

@Robert Lum  you bet you can troll around a site like BP read their books listen to the pod cast of those that are successful and talk about their business's.. its inspiring and motivational.but if you really want to learn the nuts and bolts you need to get in the game.the best and least expensive way to do that is to simply take a pre license course in your state.. learn the laws ( the real laws not the BS that is talk about on line).. terminology etc. then go to work with a brokerage in the aspect of Real estate that interest  you.. there you will get REAL training by those that are successful you get on a team.. you get paid as you learn.

Networking and doing as much research (reading, etc) before starting are you best bets. 

Purchase price: $150,000 Moved mobile home on bare land What made you interested in investing in this type of deal?

Extremely difficult to pass and I bet you didn't know that you had to get it reinspected again in three years.

OOS investing seems to be your best bet.

Park rules are usually much more restrictive than even houses in HOAs because mobile homes and RVs are close together, and have older residents who are nosy and particular.

Just play roulette and bet it all on black bro.

😂I bet others would too, we're all a little disturbed to be in this business....... 

Every one that you listed is a different script or a different mailer, but I bet you are saying or writing the same thing.