can you move houses without losing your items? for instance can i cancel ownership of a house buy a new one and transfer my items to the new house?

(already answered online) but for everyones benefit, yes you can move houses without losing your items, simply remove all your characters as residents and owners from the dwelling, then purchase your new house. You will have till the next house payment date to move your belongings out.

The in game due date is listed on the housing menu, you can use a pocket watch in the game to figure out how much time you have.

how do you buy a house and do you have to pay a mothly fee or something like that

 

can you sell a house?

You need a premium account to own a house but you can move into a house that someone else owned. Yes you have to pay weekly upkeep. You can 'sell' a house in the same sense that you can sell anything else in the game. If someone pays you gold you can just disown the house and move on

Thanks