Advice on punctuation, grammar, style and other critical communication details

[Flinty_McFlint]

Originally posted by Atticus Grinch
Since the store was founded by Joseph and Lyman Bloomingdale, technically the store should be named Bloomingdales'. However, by its own choice the current owners of the store use the singular possessive. Let's take that as read.

If the thing possessed is possessed by the store that is owned by and named after Bloomingdale, I would argue the possessive is still simply Bloomingdale's, not "Bloomingdale's's." However, to be clear that the item is owned by the store ("Bloomingdale's") and not some person named Bloomingdale, make every effort to rephrase to make the possessive form unnecessary (e.g., "the item belongs to Bloomingdale's" instead of "it is Bloomingdale's item").

Or, in the alternative, you could shop at Target, like me.