When used in this chapter, the following words and phrases shall have the meanings set forth herein:
The cost of food, shelter, utilities and essential household goods. The individuals need not contribute equally to the cost of these expenses. Labor or services in kind shall be recognized as contributions to basic living expenses.
A child or stepchild of either domestic partner.
Two persons who meet all of the following requirements and who register their domestic partnership in accordance with Section 9.1.2:
They have made a commitment of mutual support and caring for each other;
They reside together and intend to do so indefinitely;
They share basic living expenses;
They are at least 18 years of age;
They are competent to enter into a contract;
They are each other's sole domestic partner; and
They are not married to anyone or related to each other by blood closer than would bar marriage in the Commonwealth of Massachusetts.