Clark:

I would not recommend blackmouth fishing from a rowboat. That said there are some places in Commencement Bay that can be productive and you need not make long runs to get there. The same is true of some near shore spots in Anacortes area.

In the early 1900 there were many boathouses on Puget Sound that rented rowboats to anglers, but I believe they were primarily summer and fall fisheries in near shore areas. I would not do it, but there was a time when I might have. At a minimum you want a PFD, a VHF radio and a damn good understanding of the tide/current patterns where you plan to fish.
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No huevos no pollo.