mhmh...maybe i wasn´t clear enough (my native language isn´t english, sorry)
my suggestion is, to make a function/option so you could with one or two clicks delete all market offer you currently have. and not only from one villa, but from all villages together.
i think it would be good, because you sometimes have very old offers (maybe even week old) you don´t know about. and then it would be easier to delete it than to search each villa.