And having an umbrella insurance policy to help with the liability.

Insurance would cover it, I would pay the deductible, and no assets would be lost.If you are in an area like San Diego where people are more likely to sue, a judge is more likely to find you guilty, and the payout is expected to be higher, you may consider an umbrella insurance policy.

Bonus Question: Is there a certain amount of asset that you keep in multiple LLC’s or do you have them all under one with an umbrella policy?

Personally I think everyone should have an umbrella policy also.

Besides buying proper house liability insurance and umbrella insurance, how else can I protect my assets against potential lawsuits and such?

It's like an umbrella insurance for both parties.

We have the umbrella insurance to cover home based on the research from this forum.

Insurance would cover it, I would pay the deductible, and no assets would be lost.If you are in an area like San Diego where people are more likely to sue, a judge is more likely to find you guilty, and the payout is expected to be higher, you may consider an umbrella insurance policy.

I am getting a RLI personal umbrella policy from an independent insurance broker.

We discussed this with our agent, and they recommended a traditional rental policy with an umbrella policy.