Should I file a mechanics lien?

I am a house painter in Ohio and was contacted by a woman in Georgia. I agreed to work on her property for $35 a man hour. She then requested work that was out of my expertise and licensing (plumbing and electrical work). For the work out of my scope, I brought on licensed professionals to complete the work, paying their fees. The job was completed within the time frame discussed over the phone and over text message, however no written contract was signed. After sending photos of the transformation, she found a few minor details that I am willing to fix for her. I am weary that she may not pay me after I do fix these small issues (wrong color light fixture). What should my next step me if she chooses not to pay for the 603 hours I’ve devoted as well as the $2,500 in material.