I want to learn from experienced landlords here, how much deductible should we choose? 

An expired land lease2.

@Geoff Engel If you don't want to be a landlord but still want to be involved with investing you could be a private money lender for flips or in partnerships and bring the money to the deal.

I have recently switched my insurance from home owners to landlord policy.

A lot of land is sold on owner terms..

Should the bank ever need to foreclose on the property, they can’t sell the building without the land or the land without the building.

I know that the regulations in Beverly Hills is "friendlier" to landlords than Los Angeles and I'm exploring the option to convert a multifamily apartment into condos. 

.- Suggest you try to network with other landlords in your area, check MeetUp app and others.Your other option is to hire an attorney, but understand you will have to pay them for your ignorance.

We purchased the land all cash, and financed the rebuild of the community How did you add value to the deal?

Don't split the work between multiple contractors if possible, finding one to do all or most of the work will keep prices down.Challenges were finding replacement pieces for certain items as manufactured homes were very different than stick built as well as going through state guidelines for affixing the house to the land