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Staff Directory

Please click on the name links to view the employee details. 

Staff Contact Name Contact Info
Jamie Jacobsma
Mortgage Broker / CEO

Office Phone: (605) 330-6033
Cell Phone: (605) 201-7264
Email: jamie@keystoneassociates.biz
Mark Wiesner
Mortgage Broker / President

Office Phone: (605) 330-6033
Cell Phone: (605) 201-7263
Email: mark@keystoneassociates.biz
Website URL:
Rob Baatz
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 605-201-7222
Fax: 605-330-6032
Email: rob@keystoneassociates.biz
Steve Afa
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 605-645-4205
Fax: 605-330-6032
Email: steveafa@keystoneassociates.biz
Sam Everson
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 605-251-1470
Fax: 605-330-6032
Email: sam@keystoneassociates.biz
Mark Buehler
Mortgage Broker / Treasurer
Commercial Loan Specialist
Office Phone: 605-330-6033
Cell Phone: 605-376-7307
Fax: 605-330-6032
Email: mbuehler@keystoneassociates.biz
Lyle Kovalenko
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 605-212-0034
Fax: 605-330-6032
Email: lyle@keystoneassociates.biz
Jackie Frederiksen
Senior Loan Processor

Office Phone: 605-330-6033
Fax: 605-330-6032
Email: jackie@keystoneassociates.biz
Dorinda Standifer
Loan Processor

Office Phone: 605-330-6033
Fax: 605-330-6032
Email: dorinda@keystoneassociates.biz
Michaella Miller
Processing Assistant

Office Phone: 605-330-6033
Fax: 605-330-6032
Email: michaella@keystoneassociates.biz
Stephanie Richardson
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 507-301-2171
Alternate Phone: 507-562-8262
Fax: 605-330-6032
Email: stephanie@keystoneassociates.biz
Teresa Gilk
Mortgage Loan Officer

Office Phone: 605-330-6033
Cell Phone: 605-376-9093
Fax: 605-330-6032
Email: teresa@keystoneassociates.biz