> Question:  How much can we assume it would cost, to have a 
 > professional come in, check it out, and rewire at least 4 rooms (11 
 > outlets) to make it completely safe to use all at once with at least 
 > the draw of a lamp?  For now, out of uncertainty, we use only a few 
 > outlets but for sales value, we need to fix this.  I want that 3rd 
 > prong used as intended for a ground .
Carol,
 The best thing is to get a couple of reliable local electrical contractors 
to have a look and give you a quotation. Ask around with friends, neighbors, 
at the local stores or wherever to obtain those recommendations.
Prepare to be shocked at the price. (no pun intended)
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