My sister-in-law died 4 years ago. Her son was forced to go live with his father, who never married my sister-in-law. My nephew is about to turn 18 and has moved out of his father's home about 5 months ago. My nephew has never seen any of his social security benefits. His father's soon-to-be ex-wife has informed him that there are two accounts, one for my nephew and one for his half-sister (they have different mothers), with exactly the same amount in them. There are small deposits made to both accounts at the same time each month. It is possible that his half-sister is getting half of his benefit. My nephew, who is still in high school this year, would like to receive his own social security benefits, find out what has been happening with his checks all these years, and recoup the money so that he can attend college. He was always told that was the plan, but it turns out now that he has far less than expected in his account. His father has not worked in 3 years, yet has continued to pay bills, and is now purchasing his grandmother's house. He has never spent any of my nephew's benefit on clothing or anything else for him. How should we proceed?