Instructions
Layout your city before generating revenue. Place your houses close to shops and restaurants to give you the greatest profit as no one will shop in stores that are not near houses.
Accept shorter contracts with tenants in your homes to create more profit. Though the longer contracts seems more profitable, the revenue is higher when you continually renew shorter contracts.
Play often. The more you collect money from your establishments, the more money and gold you will acquire. Leave the game open in a window and play when you have a chance throughout the day or make an effort to log in each hour to collect money and gold.