Mission name: Bill Collection [Repeatable]
Mission rank: D
Objective: Go to three different stores, get them to pay the money they owe in rent to the city.
Location: Sunagakure
Reward: 60 Ryo
Mission description: The city allows people to rent out their buildings so they don't have to pay too much to get into business. However, people have stopped paying. Remind them that the city needs money to continue.
Mission details: Minimum 600 words. Try not to start a fight because that might scare of potential business owners. They will try to bribe you with food or beer, so ignore their advances.

I finished this mission in this thread here.