Real estate law, or property law, generally refers to the laws that control the ownership and land use in the United States. Real estate law is a branch of civil law covering the right to possess, use, and enjoy land and the permanent human-made additions attached to it. Real estate law directly or indirectly impacts most of us almost daily, affecting homeowners, renters, landlords, home buyers, and home sellers.
Business or commercial law governs business and commerce. It's often considered a branch of civil law that deals with private law and public law issues. Business law regulates corporate contracts, hiring practices, and the manufacture and sales of consumer goods in both the United States and abroad.
Contract litigation is the pursuit in a court of legal remedies when contracts are broken or otherwise become subject to dispute. Most people will make every effort possible to avoid court through mediation and other avenues since lawsuits are expensive, and experienced contract litigators are more likely to succeed when cases involving contracts go to court.