Univ of Miami UG known for Deflation or Inflation?

My S got accepted into Univ of Miami BS/MD program. We are all excited. He decided to go there. However he needs to [ have at least 3.7 AND should not get any single course grades less than “B”] in order to retain his MD seat. Else he loses the spot. So curious whether any one could throw some light to our below questions. Thank you.

(1) Is UM known for Grade Deflation OR Inflation?
(2) How is the grade distribution in UM?