The intention of having quarters on an auction/bidding system was to ensure fairness to players, giving those who bid equal chances to buying the quarters, and to prevent players from handing their old quarters down to their friends to maintain ownership over RL years. Since this system has gone in, there have been adjustments to it which have resulted in the ability to do exactly that - indefinitely hold onto property amongst groups of players with no chance for others to have a shot at it.
It doesn't work.
This is particularly true for quarters that have internal signs. A player can put these up for sale, but choose not to release the quarter, therefore opening the quarter only to the people that they want to bid.
This is also true for most guildhouse properties, where internal quarters get priority in bidding. e.g. The desert fort goes up for sale on Sibayad. Someone breaks inside and purchases an internal quarter, then bids on the guildhouse sign. 5 other people just bid on the guildhouse sign. The result is that the person who bought the internal quarter gets the guildhouse, due to the way this priority works. No one else had a chance.
So, the intention of making these systems fair for players is great, but it's not actually working that way. How can we fix it so that it is fair for people?
One suggestion on how it might be fixed is to remove the ability to put a quarter up for sale whilst retaining ownership of the quarter. This would mean when you put a property up for sale, it begins the auction system and opens the quarter for anyone else to enter. Ideally a player would have cleared out their storage/fixtures/belongings before doing this. If you're worried about people changing their mind, have a cooldown of a few RL hours before the property actually releases/goes up for sale. That only really fixes the single quarter issue.
I'm not sure how you can solve the guildhouse stuff. Don't even get me started on how incredibly unequal the whole shipping system is.