Any assistance would be greatly appreciated. 

They said that per California Revenue and Taxation code, they're asking me to provide them info such as the purchase agreement, rent rolls, etc. to assist them in doing the reappraisal of my property.  

You can do this with a simple, one-page addendum, or even a written statement added to the existing lease and signed by you and the tenant.Example:This lease agreement is hereby amended to reflect the change in ownership of the rental property located at 123 Straight Street, Cody, WY 82414.

Random things like this.I can only imagine if they did allow you to add all the bedrooms, they would make you also add fire sprinkler system and a commercial fire alarm system like residential assisted living. 

I had a response on a previous post this year about what the private lending restrictions will be here --> https://www.biggerpockets.com/forums/22/topics/1174919-bough...Here's a re-post of that information though:------------------------------------I do have a DSCR lender who can assist with a limited recourse loan that will close in the name of a self-directed IRA.

Check out the Note Assistance Program.

I am happy to assist and have a detailed discussion to go over potential options to help if you would be open to it.

But you can easily contact your servicer (who you send the monthly checks too) and they can assist. 

Let me know how I can assist!

In any event, I would be glad to assist in any way I can as I have been through what you are likely about to go through.