The rent would bring in 1500-1600 a month and my mortgage including all PITI is $1230.

The second pillar is a good insurance policy as that cover the majority of your exposure.

He helped me with a policy for a multi in Columbus. 

Hi Jack, Not sure if you still need help with your situation, but here's a lesser-known fact that I thought could help you buy your second home in the Bay - people are buying $2.5M homes without paying 20% in downpayment with $8000 PITI (YES!)

I like replacement cost policies and currently have them through Nationwide but the premiums seem so ridiculous.

Obviously, depending on the area, it is hard to find more than one lot, but it really helps when determining the ultimate sale value and is sort of an insurance policy. 

Speak to a solid insurance agent to ensure they're aware of what the policy needs to cover for you.

I've read some posts here about insurance but wanted to ask again if there are any updated recommendations for a landlord policy in Orange County, California.

It might be more economical (and easier) to just get a good umbrella liability policy for the cabin and skip the LLC.

-Form the LLC and warranty deed the property to the LLC as not to terminate the current title insurance policy.