Grezah joined Hartleys Lawyers in 2017. She holds a Bachelor of Arts major in Political Science from University of Santo Tomas and completed her internship at the Presidential Communications Development and Strategic Planning Office (PCDSPO) overseas.
Grezah went on to complete the Juris Doctor (JD) program at RMIT University in December 2015. Whilst finishing her JD degree, she volunteered at the Mental Health Legal Centre and assisted in the Inside Access program at the Dame Phyllis Frost Centre. She also did an internship at the Court of Appeal of Victoria.
Grezah was admitted to practice in October 2016 after completing her Graduate Diploma in Legal Practice through Leo Cussen Centre for Law. Grezah had professional training at the Victorian Legal and Administrative Tribunal (VCAT) shadowing the Deputy President of the Civil Division.