An 18 year old person is an adult so in all states they may sign a contract. So the answer to your question is none.
With parental consent or emancipation. Some states allow emancipation for fifteen year olds, and some do not. You will have to look up the laws of emancipation for your state. Without emancipation, you cannot sign a contract or own property.
In Luxembourg the minimum age to sign a contract is 16. In the United States, you have to be 18.
{| |- | No you cannot. You must be at least 18 to sign a legal contract and own property. In some states you could apply for emancipation which would allow you to own property and sign contracts. |}
No. Both are minors and can not sign contracts ( marriage is a contract), rent an apartment ( contract, again) or have the ability to earn a living.
If the landlord will accept the parents signature, yes. Until they are 18, they cannot legally sign a contract. But the parents can allow the child to live there and can sign the agreements for them. There are also some states that allow a minor to sign agreements for necessities, such as shelter, but there are restrictions.
In most states, being married automatically emancipates you. You may have to prove age and marriage, but you should be able to sign a contract.
In the United States, a 17 year old needs parental consent, and the parent has to sign a contract for the minor.
Probably not. In most states you can not sign a contract.
No, and No. Normally you are under 18 to have that, and at that age you cannot sign the contract to purchase the car legally. And, most states will not allow a car purchase by someone with a permit.
No. A minor cannot enter a contract. You need to be at least eighteen years of age to sign a binding contract.
You can sign the contract at the bottom of the last page.
The legal age to sign any legally binding contract is 18 in the United States of America. A lease is considered a contract between the tenant and the landlord.