Possessive-S/apostrophe in a list, including the first and second person

possessives grammar apostrophe compound-possessives lists

Solution 1:

It should be "Mary's and your house" (note the change of order for the owners). http://www.grammarbook.com/punctuation/apostro.asp .

I think it should be "John's, Mary's and my house" or "John and Mary's and my house" but the later implies that John and Mary are connected in some way in addition to the joint house ownership.

However, if possible I would reword the sentence so that "your house" or "our house" sufficed.

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