“Last but not leased” is a real estate pun on “last but not least.”
 
“We need one more person for our four bedroom apartment. He’s last but not leased” was posted on Twitter by The Business Boy on May 10, 2013. “Did you hear about the last remaining unit in the apartment building? It was last but not leased” was posted on The Close on March 6, 2019. “Local apartment building had only one opening left. It’s last but not leased” was posted on Facebook by Indian Hills Community Sign on April 21, 2020.
 
 
Twitter 
The Business Boy
@PajamaBen_
We need one more person for our four bedroom apartment. He’s last but not leased.
HAHAHAHA fuck it all anyway right?
3:07 AM · May 10, 2013·Twitter for iPhone
 
Twitter
Alex Maloy
@AlexMaloy
[me as a real estate agent, showing someone the last available apartment for rent]
“And last but not leased”
1:50 PM · Mar 24, 2016·Twitter for iPhone
     
The Close
79 Real Estate Jokes, Puns, & Pick Up Lines You Haven’t Heard 1000 Times
Emile L’Eplattenier
March 6, 2019
(...)
5. The Lowest Inventory
Did you hear about the last remaining unit in the apartment building? It was last but not leased.
 
Twitter
REMAX United WBurg
@RemaxKnowsWBurg
#FridayFunny:
Did you hear about the last remaining unit in the apartment building? It was last, but not leased.
2:14 PM · Mar 22, 2019·Facebook
     
Twitter
jb kelly, Auctioneers
@jbkellydublin
what do you call the last unoccupied unit in an apartment block?
last but not LEASED
#RealEstate #realestatememe #realestatememes #funny #puns #jokes #apartments
GIF
7:52 AM · Jul 11, 2019·Twitter Web App
 
Twitter
GWE Compliance Ltd
@LtdGwe
Did you hear about the one remaining apartment in the new building?
It was last but not leased!
https://gwecompliance.co.uk
#landlord #weekend #propertycare #boiler
7:00 AM · Sep 30, 2019·SocialPilot.co
 
Facebook
Indian Hills Community Sign
April 21, 2020 at 3:13 PM ·
LOCAL APARTMENT BUILDING HAS ONLY ONE OPENING LEFT
IT’S LAST BUT NOT LEASED