Potty Training Expert Needed!

Potty Training Expert Needed (2-3 Weeks Only, Full-Time), Monday to Friday, 8 a.m. to 5 p.m. I am a single Mom of two children (3 and 5-years-old) living in the Lincoln Square area. My 3. 5-year-old son has been potty training since before 3-years-old. He is consistent using the toilet for pee. However, he still struggles with pooping in the potty. My goal is to stop the continuous accidents at school. I am seeking someone who truly is an expert with potty training and can focus him for a few weeks so he can master the skill. I believe he is ready. I would request 2-3 references. Thank you!