That sounds odd... These "install addresses" aren't stored anywhere? How do you know where to send the stuff to be installed? I'm sure you didn't mean that, but you imply that you have no way of applying address standardization to them... I'm confused.
We have a standardized address format and service programs to apply the address correction business on all address changes (or adds). We can apply this to any address, within any file, fairly consistently. I'm sure something similar would work for you.
Not trying to put you off, just curious...
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