Hi Ludy!
Single-Engine Commercial Total Course Tuition: $16,746. Duration 2 months.
And Multi-Engine Commercial Add-On Total Course Tuition: $6,503. Duration 3 weeks.
Also,
CFI Total Course Tuition: $10,526 (Duration 2 months) & CFII Total Course Tuition: $5,452. (Duration 3 weeks)
To check your eligibility for the course, you can start here: https://epicflightacademy.com/prequalification-enrollment/