House hacking in Tacoma

[James Krusmark]

I'm very close to having a single family home in Tacoma under contract.  I plan to house hack it by renting out most of the bedrooms.  The home will have communal bathrooms, kitchen, and laundry areas.  I haven't been able to find solid answers on the legalities of renting out a single family home this way.  Does anyone have tips or experience in dealing with the City of Tacoma for this house hack?  

I also welcome any ideas on how to structure the leasing paperwork to account for the fact that multiple strangers will be sharing the bathrooms, kitchen. and the rest of the common areas?