Lawyers are very smart, they were know the Constitution of each country together with the rules and regulations, aside from that the law. Most of them are pretty wise so I'm sure that they were accepted bitcoin because they are knows that it is legit.
I'm sure many of lawyers in the whole world have an investment to this coin. Because lawyers know that crypto in the future will growing fast and healthy.
Its legit and do really have value this is what those lawyers do see such thing but when it comes on the literal legal thing then its still debatable since not all countries do really consider bitcoin as a good thing. Most of them would really have negative impressions which would really make them a new law that would prohibit it which lawyers would really be aware on such changes but well even they would still remain on collecting bitcoin no one would able to know for sure.