Would a MtM lease with blackout months be legal?

[Johann Jells]

I was not able to rent a unit this month. In 20 years I don't recall a MtM tenant leaving on Jan 1st, so I guess it's not a huge issue, overall we have a low vacancy rate. We usually let tenants go MtM after 1 year, figuring who does it serve to hold them? Our mostly young tenants have changing lives and us knowing they 'might' give us 30 days notice before their lease expires vs 30 days anytime usually makes little difference.

But this sucks. I'm wondering if it would be legal to have a MtM lease with November through February blacked out, that is: they can't give notice for the 1st of those months, but any other month is normal. Note this is NJ, where all leases must be renewed with owner occupied exceptions that don't apply to me. So the normal advantage of MtM to landlords of kicking bad tenants out isn't an option anyway.