If your pension is from work where you also paid Social Security taxes, it will not affect your Social Security benefit. Pensions based on work that is not covered by Social Security (for example, the federal civil service and some state or local government systems) probably will reduce the amount of your Social Security benefit.
This article is intended to be helpful and informative. But even common legal matters can become complex and stressful. A qualified elder lawyer can address your particular legal needs, explain the law, and represent you in court. Take the first step now and contact a local elder attorney to discuss your specific legal situation.