Max has a written agency agreement with Rufus in which Max will receive all of the listings in the subdivision that Rufus purchased (with Max’s representation) and is developing. One day when Rufus is visiting the site of the subdivision, a work truck accidentally runs him over and he's seriously injured. Rufus can no longer run the development of the subdivision. What happens to Max’s agency coupled with interest?

It's still in place because it doesn't terminate on the death or incompetence of the principal.

Explanation:

Agreement that exists between people are usually standing so long both parties are still alive, in most cases, the agreement may still stand with the death of one party, depending on what was written or agreed upon by both parties. The agreement between Maxwell and Rufus is still in place because it doesn't terminate on the death or incompetence of the principal.

The agreement would even stand even if one of the party ain't alive anymore.