First, if your community is smoke free, and you feel comfortable talking to your neighbor, try a friendly approach and gently remind them of the community policy and even your concerns with exposure to second hand smoke. Engage and connect and see if there is a compromise that can be reached regarding their smoking location that is still within property policy. At the end of the day, you may need to bring the issue to the attention of property management who will propose solutions or help remediate the situation.