Agrippa91 said:Tips for making money: Buy iron at Dragonstone and the neighbor island city or Lannisport and its neighboring city. It's like ~60 for "tempered iron" which is the best iron you can possibly get. You can sell it at a lot of places, even nearby (visit multiple places since the prices go down for every iron you sell in a town), but in average you should get at least 700 denars for each "tempered iron" and still enough for the other iron.
Buying lands is only a recommendation for the late game when you know for sure that you will stay at a certain place.
For the time you are a sellsword/soldier I would recommend buying velvet productive enterprises all over the world. Though they give you less than they initially think they get (like 400 instead of 800 every week) it's still a viable option...
Btw a question: Can I sell lands? Because it always tells me the sell price, but I never actually see any option for selling...
Actually you can. Took me a while to find out where to do it as well.
Simply click on the "headline" that says you can buy lands. It alters to selling! Only works of course if you own any lands in that city at all.