Stumbled upon this thread. I have a substantially similar scenario where there is a laundry facility on-site in a flood zone. Where the multi-family units are included in the definition of residential structure, the laundry facility is certainly for profit and I'm thinking it would not qualify for the detached exemption.
Do BOLers agree?
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Maybe you just wanna fly the plane yourself. Well good luck pressing take off, then auto pilot, then land.
CRCM