Your state's laws on mechanic's liens begin at 44-14-361. [Title 44, Chapter/Section 14, section/paragraph 361 of the Georgia State Code] Your local library should have a copy of the code in the reference section.
A sample Claim of Lien is given in 361.1. You must record the claim of lien within 90 days of completion of the work, & you have to sue the owner within 12 months of filing the lien. When you record the lien, you have to send owner a copy by certified mail. Once they pay you, you have to give them a Calcellation of Lien or Affidavit of Payment. There are samples in 362 & 366.
I don't know if you can add the lien costs to your contract amount. In Washington, a lien claimant may add recording fees, & attorney fees & interest if the contract says owner has to pay fees or interest.
You may be able to sweet-talk the recorder into letting you see a sample mechanic's lien. The court clerk may also be willing to show you a lien that's gone to court. Since you are a contractor, you may want to pay an attorney to create a 'lien kit' for you (if you can't find one elsewhere). This would include sample fill-in-the-blank forms. Check with the local contractor's association.
You'll need to ask the recorder about paper size, margins, headers & footers, type size, etc.
------------------
This is not legal advice and you are not my client. Double check everything with your own attorney and your state's laws.