As far as the charges he is taking against your security, it varies greatly. Landlords do have a right to deduct for moving items out of an apartment, but that how much depends on how many things were left, if he had to pay to get them removed, etc.... He MAY have overcharged, but its hard to say without all the details.
Now you do have a right to obtain any money that you may have paid to electric company for services that you did not utilize. Paulo Quintela has good advice, talking to an attorney is the only may to proceed with any action and find about just what your rights are in this matter.
As far as the CCC is not really up to you to argue about but the city. Anyway always confirm with your attorney
Your argument should be about electric bill only..my 2. Cents but don't quote me on it.