@Michael_L We have previously addressed this in this exact thread, screenshot attached for reference.
Attached is also a screenshot of the Marketplace Guidelines for Leasehackr, which does not require listing of the model year of vehicles. Any other questions you may have, feel free to reach out to us directly. As always, if you reach out to us, we will disclose the year of any CPO vehicles and provide a spec sheet. Thanks for inquiring!