Due to joint and several liability, you may have to pay money to the landlord if...

...one of your co-tenants fails to pay their share of the rent.

Joint and several liability means that each tenant is individually responsible for the entire rent amount, not just their own share. So, if one tenant doesn't pay, the landlord can legally demand the unpaid rent from the other tenants.

Here are the steps:

1. You and your co-tenants sign a lease agreement with your landlord. This agreement includes a clause about joint and several liability.

2. One of your co-tenants fails to pay their share of the rent.

3. The landlord, not receiving the full rent, can demand the unpaid portion from the other tenants due to the joint and several liability clause.

4. If you and the other tenants fail to cover the unpaid rent, the landlord may take legal action to recover the money.

5. You may end up having to pay the unpaid rent to avoid legal consequences.

Remember, it's always important to understand all the terms of your lease agreement before signing.