The problem you folks are having is that when Paul uses the word "law" he is referring to 2 different things. One is the Mosaic Law and the other is the sacrificial/ceremonial laws. The Bible does not use footnotes or differentiate which "law" Paul is talking about when he says "law". YOU need to figure it out. Notice how Paul interjects the term law (Mosaic) with law (sacrificial laws of the Levites - of whom there are no more!
1Co 9:20 And unto the Jews I became as a Jew, that I might gain the Jews; to them that are under the law, as under the law, that I might gain them that are under the law;
1Co 9:21 To them that are without law, as without law, (being not without law to God, but under the law to Christ,) that I might gain them that are without law.
He is talking about 2 different meanings of law here. It should read this way...
1Co 9:20 And unto the Jews I became as a Jew, that I might gain the Jews; to them that are under the law (of sacrifices), as under the law (Mosaic), that I might gain them that are under the law (of sacrifices);
1Co 9:21 To them that are without law (Mosaic law), as without law (sacrificial law), (being not without law to God, but under the law to Christ,) that I might gain them that are without law (mosaic law).
Here are some more points about Paul -
Paul follows all the Laws and follows the Way
Act 24:14
(GW) But I'll admit to you that I'm a follower of the way of Christ, which they call a sect. This means that I serve our ancestors' God and believe everything written in Moses' Teachings and the Prophets.
Is he a liar or hypocrite? No...
Paul Chastises Cephas for not following the Mosaic Law
Gal 2:14 But I saw that they were not properly following the truth of the Good News. So I told Cephas in front of everyone, "You're Jewish, but you live like a person who is not Jewish. So how can you insist that people who are not Jewish must live like Jews?"
And here Paul is talking about people COMING TO LAW - not avoiding law...
Col 2:16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:
Paul was the one who GOT IT FIGURED OUT CORRECTLY as Jesus himself trained him. Paul has been used as a scapegoat for people ungrounded in the word. Peter tells us this too...
2Pe 3:16
(GW) He talks about this subject in all his letters. Some things in his letters are hard to understand. Ignorant people and people who aren't sure of what they believe distort what Paul says in his letters the same way they distort the rest of the Scriptures. These people will be destroyed.
Paul is/was the master - except for the Master himself.