Reserves needed for a refi

[Amber Turner]

We currently have 5 single family homes, one being our current residence. We have to refi one of our properties from a owner occupied to an investment property. From what I have read so far, it seems to vary as to how many months of reserves we need per property, depending on with whom we refi. We are located in California. Does it vary or is it usually a set amount, such as four months per investment property? Thank you!