At least in Poland it is not viable. Friend's business lost noticeable amount of money because accountant has not filed taxes and lied that they filed and lied that they checked it.
And there was no real path to recovering funds, except small part, after long court case.
At least they were able to fire them without severance pay.
This seems to be usual. Accountants are liable for crimes like embezzlement, but tax authorities hold individual tax payers responsible. If tax payers want to recover losses they have to go to court, which is often risky because accountants will say the client didn't do A, B, and C.
And there was no real path to recovering funds, except small part, after long court case.
At least they were able to fire them without severance pay.