There are many Catholic laws and doctrines. The most well known are the Ten Commandments, but there are many more created by the Church such as one must fast an hour before receiving the Eucharist, be chaste before marriage, one cannot live a gay lifestyle, ect...
There are no Catholic dietary laws.
No, Catholic Schools are not covered by unemployment laws.
The laws of marriage as written by the Catholic Church can be found in any old church document. The laws basically said that men owned women, whether it was their father or their husband. Also, divorce was not allowed.
Couple problems with your question, there is no Roman Catholic Church, to begin with. It's just Catholic, not Roman Catholic. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is never used by the official Catholic Church. Secondly, Kosher is a system of laws and regulations to regulate food and eating for Observant Jews, not Catholics. The Kosher laws are found in the Pentateuch, the first five books of the Bible. Of the 613 laws in the Pentateuch, the moral laws are binding on all humanity for all time. The ceremonial laws (of which the Kosher laws are a prime example) were to foreshadow the coming of the Messiah. To obey any of the ceremonial laws of the Old Testament then would be to say that you don't believe that Christ has arrived in the person of Jesus, and would therefore be a mortal sin. St. Paul covered this in his letter to the Galatians, in this he refers to the ceremonial laws of the Old Testament as the "Works of the Law" as understood by all Jewish rabbis and enshrined in later Talmudic Judaism. So, no, the Pope did not get rid of eating Kosher all year long, Jesus Christ, followed by St. Paul did.
That you stay in the SAME relationship forever
Canon Law
The laws of the Catholic Church are contained in Canon Law. You may view the current Code at the link below. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is rarely used by the Catholic Church.
Catholic religious laws are primarily based on the teachings of the Bible, the Church's tradition, and Canon Law. These laws cover areas such as moral behavior, sacraments, worship practices, and obligations of the faithful. The Catholic Church's Code of Canon Law governs the structure and organization of the Church, as well as the rights and responsibilities of its members.
Archdioceses do not write or enforce laws for the Catholic Church; rather, they operate within the framework established by the Vatican and the universal Church. The laws, known as canon law, are created and promulgated by the Pope and the Roman Curia. Archdioceses are responsible for implementing these laws at the local level and ensuring that they are followed within their jurisdictions.
Not sure what you mean, but a Catholic is a Christian.
The Catholic Church dominated the lives of medieval people by telling them when they should work, what religious traditions they should follow, and what punishments they should get if any laws were broken. It was even more powerful than the king or queen.
A Catholic annulment is the same in any jurisdiction.