A portable washing machine may offer great benefits of saving space, electricity bills, and maintenance costs. As some of the portable clothes washers (like the ones designed for dorms) are so small they can easily fit anywhere and do not need any legal formalities. Having said that, If you are in a rented apartment and want to go ahead with the larger versions that have higher capacity, you may need to check with your landlord. The best way to check the legality of a portable washer is to check the Lease agreement also known as the rent agreement in many places. Some landlords may not allow the heavier version of portable washers. If there is nothing mentioned in the lease agreement, check with your landlord if you can attach the portable laundry machine, in most cases, they allow it as these washers are not very heavy. The challenge of legality most comes up if you are in a rented house or apartment, otherwise, these laundry devices are the most legal friendly thing you can buy.