Right now there are no STR restrictions unless you are in an HOA. 

It's a great time to be in development, not necessarily AirBnB in CA due to the ever-increasing restrictions and fire hazard severity zones - but that's still something great to have experience with.

But are their laws that restrict when one is allowed to do a subject to deal? 

To your point about rental restrictions, each building has different rules and restrictions that need to be researched to determine which properties would work for your goals.

Get a feel for the local government, are they growth focused or are they restricting construction?

Regarding moving a mobile home on the land, you'll have to check with your local zoning office to see what restrictions there are on the land (if any) when it comes to removing the older home and replacing it with a newer one. 

Case it point, mortgage regulations, professional licenses like doctor's licenses, blue sky laws, accredited investor restrictions, etc.

@Tony Manning depending on the county there are programs to help with the costs, but requires tenant income restrictions.

It’s relatively easy for an agent to find out the rental restrictions if there are any.If you are interested in investing you can always message me on here or text me 2012949968

How are the zoning restrictions?