I am a contractor that completed a remodeling job on a residential duplex home in Louisiana for someone that lived in another state. After completion of the project, she started putting a lot of excuses for not paying. The total cost of the project was $47,000 but as the project progressed, she started making changes to the initial proposal. All changes are recorded via text messages of her agreeing it would be more money than the initial proposal. In January of this year I received her the last payment. She still owes me $7,000. I followed up requesting payment but she didn't want to pay. I wanted to know if I could send a demand letter citing to prompt payment statute before filling a suit.