oh yeah... well, let's see. Allie's about 7 and James is 6. Snape's cottage is further up away from the shore. Harry's is down and around the bend near a small pebbly beach.
Harry went through healer training, but he left... had to get away from it all. I figure both of them were so traumatized by the war, they deal with it by getting away from the Wizarding world.
Snape speaks to his daughter using legillimency. She's never known her mother. They go into town once a week, but he casts a confundus charm so he doesn't have to deal with any of the townspeople. She's home-schooled.
Harry has James for the summer and winter hols. He also gets James every other weekend.