Pastor Schaller has been a pastor and missionary for more than 40 years, leading the establishment of churches and Bible schools in Finland in 1975 and Hungary in 1990. In 2005, he was named Presiding Elder and Overseeing Pastor of Greater Grace Church in Baltimore, the home base church for Greater Grace World Outreach.
Pastor Schaller is known for his thought-provoking teaching and preaching. He maintains an active schedule of ministry at Greater Grace Church and Maryland Bible College and Seminary and is frequently invited to speak at conferences internationally.
After graduating from Northeast School in 1975, Pastor Schaller led a small team to Helsinki, Finland, helping establish a ministry that now includes multiple churches and has inspired Finns to serve Christ internationally. He later served nearly a decade as Missions Director for GGWO in Massachusetts and Maryland before planting a new work in Budapest, Hungary, where he served for 13 years before returning to Baltimore in 2003.
He and his wife, Lisa, reside in Baltimore and have a family that includes children and grandchildren.