Mark Jones mentions nine questions that need to be answered as one considers antinomianism.
1. Are there any conditions for salvation?
2. Is the moral law still binding for Christians?
3. What is the precise nature of, and relationship between, the law and the gospel?
4. Are good works necessary for salvation?
5. Does God love all Christians the same, irrespective of their obedience or lack thereof?
6. Who is the subject of spiritual activity, the believer or Christ?
7. May our assurance of justification be discerned by our sanctification?
8. Does God see sin in believers?
9. Is a person justified at birth or upon believing?
I thought these questions help to frame the debate well. He gives nuanced answers throughout the book that show the different shades the answers can take. Yet at the same time he shows how one answers these questions goes a long way towards determining whether someone is antinomian or not.