Salem

There is a large market of player stores near the harbor. How can I "claim" on of these stores to sell my trades?

Is there a visual sign, that a store has no owner?

If the stall upkeep runs out and it is unclaimed it will have no blue canopy any longer. You do need the mercantile skill and enough coin to rent it.

you cant sell in stalls first you need to rent stall and pay every week to keep this stall
who rent stall they are rich and can handel this rent

so if you want to trade sell and buy make trade post in trade forum
then you can add people who want to trade with them and meet them in provi and trade in any barrel there silver & items

Ups... The Mercantile skill needs 7500 Law & Lore. Not something for a Newbie

Yeah even if you have a stall the king claims 35% of the price as taxes... it's better to make a forum thread in the trade wind