Laura Divorce & Family Law Lawyer, Illinois

A parent's failure to provide any financial assistance to or communicate with his or her child over a period of time. When this happens, a court may deem the child abandoned by that parent and order that person's parental rights terminated. Abandonment also describes situations in which a child is physically abandoned -- for example, left on a doorstep, delivered to a hospital or put in a trash can. Physically abandoned children are usually placed in orphanages and made available for adoption.

Time off work for illness. Most employers provide for some paid sick leave, although no law requires them to do so. Under the Family and Medical Leave Act, however, a worker is guaranteed up to 12 weeks per year of unpaid leave for severe or lasting illnesses.

The right to see a child regularly, typically awarded by the court to the parent who does not have physical custody of the child. The court will deny visitation rights only if it decides that visitation would hurt the child so much that the parent should be kept away.

A formal request for a green card or a specific nonimmigrant (temporary) visa. In many cases, the petition must be filed by someone sponsoring the immigrant, such as a family member or employer. After the petition is approved, the immigrant may submit the actual visa or green card application.

An arrangement by which parents who do not live together share the upbringing of a child. Joint custody can be joint legal custody (in which both parents have a say in decisions affecting the child) joint physical custody (in which the child spends a significant amount of time with both parents) or, very rarely, both.

In some states, a type of marriage in which couples can become legally married by living together for a long period of time, representing themselves as a married couple and intending to be married. Contrary to popular belief, the couple must intend to be married and act as though they are for a common law marriage to take effect -- merely living together for a long time won't do it.