PLEASE - start taking as many CE as you can get on S-Corp. Here is a free one to start https://www.cpaacademy.org/webinars/a0D2S00000rBa4OUAS

Keep an eye out for how to prepare S-Corp with Lacerte https://proconnect.intuit.com/training/software-webinars/

It is always tempting to take on types of returns you are not familiar with, but you really have not truly become an exceptional tax preparer until you can turn down returns that you are not comfortable with. 

Best of Luck