First of all, you should report this paralegal to your state's bar for unauthorized practice of law.
Second, the most reasonable interpretation of that language is that the equal division of the accounts is the intended effect of the language and the identification of the approximate value is merely to describe the approximate value of what is divided. However, case law in your jurisdiction may support an interpretation that limits your ex-spouse to the $10,000 value to be divided. Your best option here is to talk to a divorce attorney in your area about your options.