You need to check to see if your state requires a license - most states do not. 

There aren't any special requirements.

If you've got the capital and you know some of the homes you like require renovations, perhaps it's worth checking out an FHA 203k loan program (the renovation funds are built into the loan, and you don't pay them out of pocket!)

One of the best strategies if you are so inclined is to move from property to property every 1-2 years and you can do this with single family homes up to 4 unit multis and get low down payment loans on them of only 3.5-5% down payment owner occupied as opposed to most of the investment loans that require a 20% down payment.

When lots are platted, usually it should be required for a cross/shared access easement so a tract isnt land-locked. 

Everything is geographic as it pertains to needs and requirements.

 - the rent control will require paying tenants to rehab but that is fairly low cost in the scheme of the rehab value add and sell

While a $130,000 property might seem appealing, managing it from afar requires careful planning, considering travel costs, taxes, and legal obligations like understanding landlord-tenant laws specific to Kansas City.

@Julie Haggerty, do mid-term rentals require a different kind of insurance?

Do everyone a favor and read on the requirements in the CA contractors license board on How to Become a Contractor before asking the forums.