First and foremost you can't file criminal charges when there is interference on behalf of your vice president and former vice president impeding the investigation(s).

Second the answer to the question is in the material above.

As of 2/28/14 a firm owned by Archer and Hunter, Rosemont Seneca had an account balance of $4.00, over the course of 2014-15 that account grew to over 3 million dollars as seen in a court filing against Dennis Archer for money laundering scribd/document/404001731/Rosemont-Seneca-Partners-Court-File. To see the court filing put .com after scribd in the above address. (which is a current ongoing investigation)

If Dennis Archer is facing money laundering charges then Hunter Biden should be also as they were partners in Rosemont. The difference is Dennis Archer doesn't have a former VP for a father. Plus there's another document (which I don't want to spend an hour searching through all the info I have on Ukraine to find it that shows a hefty deposit went into the account of Rosemont before Archer or Hunter did anything at all except get appointed to the board. Archer was appointed, deposit, Hunter was appointed, all within a matter of about three weeks. That deposit went through shell corporations through Lativia to Cypress into the US account of Rosemont. (if I remember right that's the route it took, it did go through shell corporations through other countries first).

This is my theory, conjuncture of events....purely speculative on my part. (Even if true I highly doubt we'll ever know as I can't see them letting Americans see how deep the deceptions run behind the curtains) Thinking logically about anyone with the power to run a scam those scams usually aren't physically undertaken by the holder of power but by his underlings. What Hunter Biden got doesn't come close to reflecting the kind of money flowing out of Ukraine (or you can say taken), Hunter nor Joe, according to any reports on their wealth reflect that. Just whose account would reflect a worth of several hundred million dollars?.....Exactly the one holding the ultimate power, Obama. Though this has been said but I've never seen it tracked to a certainty that these so called book deals worth hundreds of millions of dollars are the way they launder money back to themselves after leaving office. Billions of dollar came up missing in Ukraine during 2016, mostly after the election....yet what we see doesn't reflect that that kind of money or a chunk or portions of went to Biden or Hunter, if it did they've found a way to hide it quite well. We can go on if we like to further speculate even further, why not it's just so much fun, that since so many individuals in government leave office writing books that this could be the best well kept secret from Americans ever perpetrated upon them....as we aren't just talking gas revenue's here there's been plenty of talk about American taxpayer aid being launder back. I mean who wants to be the first to wreck a good thing right?....we all know that a hand in the cookie jar isn't exclusive, especially among "party's".