Usually, an indorsement is unqualified, which means that the indorser is guaranteeing payment on an instrument, in addition to transferring title to it.

Unqualified Indorsement

An endorsement on a financial instrument, like a check, that doesn't limit payment to any particular individual or entity.

Indorser

A person who transfers an instrument by signing (indorsing) it and delivering it to another person.

Guaranteeing Payment

The act of promising to fulfill the payment obligations of another party if they fail to pay as agreed.