For this achievement, you must complete all 12 jobs within the Luxury DLC. To access the DLC content, go to the laptop, and press the middle option which takes you to a map.
The buildings highlighted with white are jobs that you need to complete. If the building has a checkmark, that means the job is finished.
You do not need to fully complete each job to gain the achievement. Once you reach 60%, you will receive a prompt to "complete" the level. You can complete the tasks that are more expeditious (Pick up trash, floor tiles, painting walls, etc) first so that you don't have to do the time-consuming parts of the job, which would make the achievement take significantly longer.
This process will likely take 6-8 hours to complete every job.
Good luck!
**Due to some updates, there's now 15 events required for completion, thanks to some comments for bringing this to my attention**