House Hacking - Potential Way to Depreciate and/or Use Bonus?

[Ben Dirr]

Hello - 

I purchase a 4 family earlier this year. It is technically two separate addresses side by side that are connected. So basically two connected duplexes as the government sees it. Separate tax bills, deeds, water, etc.  It all fell under one purchase agreement. I live in one of the units and rent out the other 3. 

My idea - can I basically get a cost seg study done on the other side of the building that I am not living in and use bonus depreciation (assuming it goes back to 100% this year) to accelerate tax write offs. With the different address, utilities, property taxes, etc. I feel like I have an argument. 

Has anyone ever tried this before or have any feedback? 

Appreciate it!