Virginia
John Adams was asked to represent the New England state of Massachusetts at the convention but he was unable to attend. Adams was the first continental delegate to represent the state of Massachusetts in 1775.
He owned property
Assuming you mean which state does McCain represent in the U.S. Senate, he represents Arizona.
Maine
John Adams was elected from massachussetts
He did not represent a colony because he was only nine when Independence was declared. He lived in Massachusetts and represented that state in Congress.
Massachusetts
Federalist...
No, President John Adams served as Washington's Vice-President from 1789-1797 and as such was the titular "President of the Senate", but he was never elected to serve in that body. His son, John Quincy Adams (6th US President) served in the U.S. Senate from 1803 until being replaced by the Massachusetts General Court (state legislature) in June 1808 (until 1913 state legislatures chose United States Senators).
Senator John Kennedy represents the entire state of Louisiana in the United States Senate, as senators are elected to represent their whole state rather than a specific district. He has served as a senator since 2017. Prior to his time in the Senate, he held various positions, including serving as the Louisiana State Treasurer.
John Adams is home to Massachusetts