I'm a general contractor located in So. CA and do not know the regs in your area. In our area lead abatement is volutary in residential homes however it is a large problem when your type of situation comes up. We are also required to provide a safe work environment for or employees. This creates a delima for our customers because we won't repaint a house if we have to disturb the lead (ie sanding) and it is very expensive to abate the lead. We have found it is more economical to remove and replace wood moldings than try to strip the wood of old paint. It is more difficult and expensive to deal with other painted surfaces such as walls, ceilings, doors, door jambs and wood windows. The best and most economical way we have found to deal with the situation is first to remove carpets. We then retain a professional abatement contractor to sand whatever items needed. In this process the abatement contractor will mask and protect items not effected by the sanding and then clean the house and test the air to certify there is no lead left behind. Then you can paint the house. Unfortunately the next time you paint you will have the same problem. To abate all the lead based paint so you would not have a re-occuring problem would be cost prohibitive. Are you sure the paint has lead? Have you had paint chips tested? Does the amount of lead in the paint surpass acceptable levels? You should contact a local professional who deals regularly with lead problems and get his reccomendations.