Perhaps you should look into an attached ADU versus a duplex. 

Put it on the market, take your (up to) $500k tax free gain and buy a no attachment rental if you want.

@Mooyoung O.we build a stacked triplex the numbers work best in downtown columbus in 43203 and 43205 and 43206 where we can get the land price under 100k and 3-4 units (40-45 dwelling units per acre) I attached the renderings if you are interested in new construction. duplexes are much more common. triplexes only represent 9% of what's been built in our market.

We are evaluating conversion of our Condo Association in NV to an Townhouse Association. the condo buildings share roofs and vertical walls i.e. they are attached side by side.

One residential unit is attached in the back, around 700 sqft.

I have no problem renting my houses but sometimes lose my apartment/attached rental property units’ tenants faster than I believe I would otherwise because they would prefer to live in detached houses.

The venue has guest accommodations that is available for overnight rentals which can sleep up to 14 attached. 

Had to throw the doorknobs with the lock boxes attached away. 

See below screenshots with dates attached.

Some states also have a requirement for a mailing address attached to each rental, make sure that’s also not required.