Current Employer in Add/Edit Individual should work like "Use Household Address" - e.g. you can use a comboBox to find existing an organization, or create new organization as needed. Make sure comboBox includes organization name concatenated with address so users can distinguish branches of an organization, etc.
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Seems this is an odd field.
If someone enters say "Example Company" to associate this person to the already existing
company with that name but mis-spells it then you have a problem.
So if it was auto fill then the person would know they found the right one and if there are none it would