No. It would be unethical of us as independent educational consultants who adhere to the Independent Educational Consultants Association (IECA) Principles of Good Practice to guarantee admission to any school. There are some firms that provide guarantees, but those guarantees are typically accompanied with extremely high fees and the admissions decision is still not guaranteed.
With the exception of the recent college admissions scandal, where illegal guarantees were made, it is virtually impossible to guarantee someone will be admitted to any given school. You should be wary of anyone who promises to get your student into any college, particularly into ivy league colleges. No one can guarantee admissions and this violates the ethics of the profession.