Are you a person or an object: Who vs. that

There’s no doubt about it – there are some writers who find these are the two words that always confuse them.

Who always is used when referring to a person, as in Lisa is the attorney who represents me.

That always is used when referring to an object or idea, as in Courtroom 4231 is the one that we will appear in.

And that explanation should solve the problem for anyone who was still confused!