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If you have any ethics at all, you really shouldn't sell these. 99% chance that the buyer is going to try and scam the next customer with them, even with the localbitcoins escrow system...
Also, i'm not sure if you verified these accounts using any sort of passport, but if you did, you're putting your entire reputation on the line for just a few bucks. Really doesn't seem to be worth it to me..
If he have verified them with any form of ID, then it will be easy for him to recover the account after selling it. Don't think he really cares about reputation.