Not allowing washing machines for tenants

[Sami Gren]

is it in any way unlawful  to ban tenants from having washing machines on premises, and they will need to go to laundromats? (Atleast in state of nj?)

[Wesley W.]

My lease states they must written permission from the Landlord to have W/D appliances in their rental unit.  I have them sign a lease addendum like this:

This agreement serves as consent from the Landlord to permit Tenant(s) to attach and use a clothes washer and/or dryer within the aforementioned rental unit under the following conditions:

Any damage to the Premises caused by water originating from the washer and/or its connecting hoses will repaired by the Landlord at the undersigned Tenant(s) expense.

Tenant agrees to regularly maintain and clean lint/debris from the dryer unit itself as well as attached ducting. Any damage caused by improper maintenance of the appliance or its malfunction will be repaired by the Landlord at the undersigned Tenant(s) expense.

Tenant’s clothes washer and dryer will only be used by the legal occupants of the rental unit (as determined by the signed Lease Agreement, referenced above).

Dryer must be vented to the outside.

Tenant agrees to install, at his/her own expense, steel-braided washer hoses to the washer, and metal ducting to the dryer.

Landlord reserves the right to revoke consent given in this agreement via 7-day notice (as outlined in Paragraph 12 of the Lease Agreement).

Unless local laws say otherwise, I think you can forbid them in your units.  It's your property, after all.  For the reasons mentioned above, I would (and do) allow them, once the tenant accepts the above terms.

Good luck!