Renting bottum story seperately?

[Drew Barrett]

Hi Y'all,

Quick question - I'm thinking about buying an investment duplex in the Bonney Lake, Washington area.  What's up is that this duplex is huge! Each side is 3 stories, and 1800 squr feet - 4 beds, 3.5 baths, and a one car garage.  I'm thinking about renting the bottom floors out separately (they have one full bedroom, full bathroom, and the garage (which would likely be converted to a livable space ).  I'm probably not going to be actually walling the bottom floor off, I'll just lock the door or something, so the bottom floor would still be the same address and stuff - do I need a specific type of rental agreement for this?  Is this subletting/renting a room?   Also, it might be some time before I actually get kitchens installed - so I'd probably just put in a fridge, microwave, hotplate,  - anyone see any issues with this?

Once again, thank you in advance for any help!

-Drew