You might have already done this and if you haven't I know this might be a pain in the rear, but why not try finding out who manufactured the floor you are bidding on. Each Company usually has pretty stringent care guidlines, especielly for Commercial Flooring, plus they may have suggestions such as if it is to be scrubbed, which pads or brush sets work best.
just my 2 cents but it would be well worth the time spent investigating versus asking our opinion on an unseen floor, or using a product or procerss that could potentially ruin the floor. :|