How do you find your deceased parents assets when they've been gone for 14 years?

Now here's a tough one. A reader left me this brief note:

"How do you find your deceased parents assets when they been gone longer than 14 years?"

There's an awful lot I don't know about your situation, including why 14 years have gone by with nobody looking after any potential assets. I don't know your parents' age when they died, where they lived, what they did for a living, or anything