Negative impacts include an increase in criminal activities, social deviations such domestic violence, divorce, bankruptcy, drug and alcohol abuse, risky or illicit sexual behavior (especially prostitution), and problem gambling, loss of property value, and impoverishment. The proposed Hard Rock Hotel & Casino entertainment complex includes a large slot machine area, with state-of-the-art machines that are known to be highly addictive.
The promoters have said they are interested in building a destination project for city residents. Take note the casino will be almost as big as their operation in Las Vegas. Already in the Dominican Republic the main clients of locally operating casinos are Dominicans.
A search online on "impact of casinos on a city" will bring up lots of information on the negative impacts.
An article in The Atlantic summarizes it for the United States.
http://www.theatlantic.com/business/...asinos/375691/