i guess my question is if i sue for 2900 ( the amount of security deposit) instead of 5800 can the ll introduce damages

If you sue at all and prevail, the court will grant double escrow and the LL will have the right to introduce damages. If LL is just late and you don't sue and he pays, he does not have the legal right to deduct damages after 30 days. Is that clearer? If you found my comment helpful, please mark it so. Thanks.