You want to continue debating being sinless my friend? Or are you wanting to debate the law itself? I may not be under the laws tight grip and I may be under grace but I still respect his law and follow it the best I can because I love him not because I
Paul talks about two different laws:
#1 is God's law, as the one first given to Moses, then to us by being written on our hearts by the new covenant.
#2 is the law that Governs the flesh, which is the one Jesus destroyed on the cross.
I can give an example of both, because the wording that Paul uses can become confusing at times, and it's hard to distinguish which one he is talking about at times.
This is an example of God's law, and you probably know this, but I'm just trying to distinguish a huge difference in the "Laws".
"This is the covenant I will make with the house of Israel after that time," declares the LORD. "I will put my law in their minds*and write it on their hearts.I will be their God, and they will be my people.*No longer will a man teach his neighbor, or a man his brother, saying, 'Know the LORD,' because they will all know*me, from the least of them to the greatest," declares the LORD. "For I will forgive*their wickedness and will remember their sins*no more."*
And this is the example of the law that Jesus destroyed.
"So I find this law at work:*When I want to do good, evil is right there with me.*For in my inner being*I delight in God's law;*but I see another law at work in the members of my body, waging war against the law of my mind and making me a prisoner of the law of sin at work within my members."
What Paul is referencing in Romans 6 is being dead to sin, because the "law" we are no longer under was the very one Paul stated Jesus destroyed on the cross that waged war against the law of his mind. The law of his mind is the law of the new covenant that God stated he would write on our hearts. So when he states we are not under Law but grace, he wasn't referencing the law written in our hearts and minds, he was talking about the law that is defeated by the cross, which is us being saved by Grace.
The main thing defeated on the cross was the power sin has over us, (the law he destroyed in his flesh-"by abolishing in his flesh*the law with its commandments and regulations.*His purpose was to create in himself one new man out of the two, thus making peace,*and in this one body to reconcile both of them to God through the cross,*by which he put to death their hostility.")
And I'm definitely not saying we don't still sin, all I'm saying is that now we have the power, to ultimately in the end, OVERCOME it. Hope this helps and was what you were were wondering about.