A limited liability partnership protects each partner from personal liability for certain obligations of the partnership. The limited liability partnership differs in one important way from general partnerships. Each partners is not liable to the other partner's debts or obligations as they would be in a general partnership.

In the United States, each state has its own laws governing the formation of a limited liability partnership. It is a popular form of partnership in some professions. Architects, lawyers and accounts are particularly fond of the limited liability partnership. In some states, limited liability partnerships can only be formed for these professions.

The liability of the partners involved also fluctuates from state to state. In section 306c of the Uniform Partnership Act, a guideline that many state laws are based upon, the limited liability partnership forms a limited liability similar to that of large corporations. The Act states that a partner's role in the partnership does not make him or her personally liable for any obligations.

A large number of states only extend liability protection against negligence claims. This means that a partner can be personally liable for other claims, such as contract claims. Profits from the limited liability partnership are distributed evenly among the partners. This is for tax purposes, as the partnership is not taxed separately. Separating profits also avoids double taxation, as sometimes happens with large corporations.

In states recognizing limited liability partnerships, a partnership can qualify by registering with state authorities and fulfilling certain requirements. Some states require proof that the partnership has enough assets to cover any claims and has obtained adequate liability insurance. In all states, the limited liability partnership must file a registration fee and include the phrase Registered Limited Liability Partnership or LLP in their business title.

Partnerships that offer certain professional services may be required to form a limited liability partnership and register as a professional partnership (PLLP). The PLLP is the same as a limited liability partnership, but is an association purely for professionals. Each state has its own guidelines as to what services qualify as professional. Typically, businesses such as engineers, dentists, accountants and lawyers are included.