Law Guarantee

Must I guarantee my friend’s loan?
Question: A friend asked me if I can sign on her loan document as guarantor. She’ll use the money to buy a small home in their province. What happens when a person signs as guarantor to a loan?
Answer: Banks and financial institutions grant loans to individuals who have passed stringent [...]

1. a promise or assurance, esp. one in writing, that something is of specified quality, content, benefit, etc., or that it will perform satisfactorily for a given length of time: a money-back guarantee. 
2. guaranty (defs. 1, 2). 
3. something that assures a particular outcome or condition: Wealth is no guarantee of happiness. 
4. a person who gives [...]