What rental documents should be included in disclosure?

[Nuo Shi]

HI BP,

1. What should be the rental documents included in property disclosure when buying with existing tenants? I'm thinking about estoppel certificates sent to and received back from tenants; leases; rental agreements; and current income and expense statements. Anything missing?

2. Is that legal to ask seller to provide current tenants' occupation/income? May I ask how many people live in current property? Since I found the lease it's signed by "one tenant name + his parents/families (no name for each adult)"

3. For a month-to-month lease, should I wait until close and send out 30day/60day notification to change lease term (e.g. rent, regular inspection timeline)? Ideally, I'd like to cover the new terms when I sign the lease with existing tenants before close, but since there is a pre-notification period and the property still belongs to seller, I don't know how to manage the timeline. This is in California.

Thanks for advice