to earn free simolions :you have to have only one house or it wont work!
1.get a unfurnished studio for free
2.once its done being built,click on the house and go to the view house option
3.click the furniture icon and start selling every thing including the windows and doors
4.once every thing is sold,click on the house icon and make sure your on the tab that says rooms 5.sell all of the rooms
6.click the green arrow
7.click on the town icon
78.click on the house and press the icon that says demolish
do this as many times as you need but it will only work if its the second house and there is no sim in the house. Good luck