This is a very good document. What governs in the end is a decision under federal law, either by the government or a federal court, how immigration law will be applied. But the topic of "moral turpitude" is one of the most murky topics in federal immigration practice. The board and the courts do look to the state law to find out, but they can make their independent decision.
I have not researched the issue of solicitation much, but I agree with this document that it could be seen both ways: as a CMT or not, depending how much "moral turpitude" one nowadays blames on the customer. And I would say the trend surely goes this way. Fifty years ago johns almost never even were fined, cops just jailed the prostitutes. Today often police go heavily after the johns.
If it is true what the article says, there has never been a decision about this yet, so we don't know how a court will end up seeing this crime. That's why I would always try to err on the side of caution and treat it as if it was a CMT and therefore try to find an applicable strategy for the defense.
By the way, I use such a chart, too, for reference, and in my issue (for my state) solicitation is marked as a CMT. Now, I have not researched, as one should do if one has a client, if these charts are correct and on what they are based.
