Can I charge part LETS Credits/part federal Dollars in a Transaction?
Yes. If in providing that service you will have to pay federal dollars for providing part of what is requested (eg. for paint, petrol, your tax (if you are a tradesperson or professional exercising their regular occupation)) you can ask for dollars to cover this needed component. Make sure that the other person understands why you are charging dollars, as this helps make sure that they feel what you are charging is fair.