We are trying figure out the best way to address this issue. 

Where it gets interesting is that the house has 5 mailing addresses associated with it and the fire prevention bureau has on their records it is also a 5- unit house, and I am billed as such upon annual renewals/inspections.

I can disclose the property address and details if you would like to chat.

If you have an address you may be able to verify who owns property via netronline.com.

Quote from @Cameron Goedde: Quote from @Wences Lopez: I’m actually starting my first STR in Tucson, was just there last Friday furnishing up my place 👍🏻 How's the experience been with this so far? 

I just wanted to see if anyone has any idea on how to separate them by addresses?

Here is a recent post of mine that addresses your questions:Cost Segregation - The Basics (biggerpockets.com)You don’t need to complete it before the end of the year to use it for your 2024 taxes.

With permit, benefits are 1) get depreciation and other tax write off benefits since it’s a permitted investment purpose ADU, 2) probably better for resell value, 3) have a separate address and don’t have to bother sorting out mails for our legal tenant, etc. without permit; benefits are 1) no hassle to get the permit, 2) no permit fees, 3) no tax on rental income (as it is more like a “roommate”)Has anyone gone through a similar situation before?

Cannot comment as never done business with this person but if someone needs to change their number and email addresses, there are typically reasons why. 

Set it up so they can give you their name and email address so you can contact them in the future to learn more about their property.Create Facebook and YouTube Videos about Your Real Estate Investing BusinessLastly, having a presence on YouTube and Facebook Live video will definitely get you in front of the right audience.