Does a garnishee have the right to ask the law firm that represents the creditor for a W9 form from the law fi?

The garnishment checks are pay to the order of the creditors, not the law firm. This is a civil money judgment issued by the District Court in Colorado. I have never heard of the garnishee asking for a W9 form from the creditor’s attorney before & it doesn’t make any sense to me as the garnishee is not paying the law firm anything. The garnishee will not be issuing the law firm a 1099 or any other tax form.