HSLDA members can also use the sample letter of withdrawal for Illinois, available below, to correspond with school officials. You can use this form to follow the withdrawal procedure of the Illinois school your child is currently attending.Step 1: Read and understand the Illinois laws that apply to homeschools! Get your hands on a free Illinois Letter of Intent to Homeschool template and learn the right steps for withdrawing your child from public school. Send the letter certified mail with return receipt to the principal of your child's school. Below is a sample letter, but there is no specific format required.