Recently I just purchase property, and during processing the SNP, I was informed that the current property did't received any TNB bills for 5 years but the meter is active with power supply. 

TLDR : Current seller bought the house from previous owner with inherited the TNB issues. It happen because previous owner is having hefty outstanding TNB bills and TNB disconnect the account without remove the meter.  :confused:

Anyone here experienced similiar issues? And the lawyer told me, the money won't get release if this issues did't get resolved.

GG, so means you now have to pay the overdue amount from the previous-previous owner?

Onus on your current seller to settle whatsoever utilities outstanding as disbursement will no be done unless otherwise.

If seller didn't settle the outstanding, the sale won't go through.

Alternatively, buyer settle the arrears and get on with life.

How TNB just disconnect the account yet not the meter??

Really curious...

Please discuss with your lawyer. Your lawyer will take a portion of the purchase price to pay off the outstandings with TNB. Please get the previous owner/seller to do this and to restore everything because you can be charged for stealing electricity if not done correctly.