They can sign it, but they cannot be held to it. The other party is taking a risk.
No, they are not an adult. Until they are 18, they cannot contract or sign a legally binding document.
yes, Cristiano ronaldo can sign a contract
They can sign it, but it is not legally enforceable.
In the United States, a 17 year old needs parental consent, and the parent has to sign a contract for the minor.
No, they cannot sign a legal contract. They must be 18 or have a co-signer.
No. At 15 you cannot legally sign a contract.
No, a 17 year old cannot sign an enforceable contract. You must be 18 to do that. However, if the 17 year old confirms the contract after turning 18, (by making a payment or other action) it can be enforced.
18
A person must be of legal age to sign a contract. A lease on an apartment is a legal contract. So a 16-year old would not be able to sign this document.
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.
You could sign it but the contract would not be valid as you are a minor.
Anyone who is over 18 years of age and of sound mind is able to sign a contract. An 18 year old can rent an apartment or buy a car which includes signing a contract.