diff --git a/lemur/certificates/service.py b/lemur/certificates/service.py
index 0bd50694..c8a5365b 100644
--- a/lemur/certificates/service.py
+++ b/lemur/certificates/service.py
@@ -54,7 +54,7 @@ def get_by_name(name):
 
 def get_by_serial(serial):
     """
-    Retrieves certificate by it's Serial.
+    Retrieves certificate(s) by serial number.
     :param serial:
     :return:
     """
@@ -64,6 +64,22 @@ def get_by_serial(serial):
     return Certificate.query.filter(Certificate.serial == serial).all()
 
 
+def get_by_attributes(conditions):
+    """
+    Retrieves certificate(s) by conditions given in a hash of given key=>value pairs.
+    :param serial:
+    :return:
+    """
+    # Ensure that each of the given conditions corresponds to actual columns
+    # if not, silently remove it
+    for attr in conditions.keys():
+        if attr not in Certificate.__table__.columns:
+            conditions.pop(attr)
+
+    query = database.session_query(Certificate)
+    return database.find_all(query, Certificate, conditions).all()
+
+
 def delete(cert_id):
     """
     Delete's a certificate.
diff --git a/lemur/sources/service.py b/lemur/sources/service.py
index 227f1bce..5002041c 100644
--- a/lemur/sources/service.py
+++ b/lemur/sources/service.py
@@ -116,7 +116,12 @@ def sync_certificates(source, user):
 
     for certificate in certificates:
         exists = False
-        if certificate.get('name'):
+
+        if certificate.get('search', None):
+            conditions = certificate.pop('search')
+            exists = certificate_service.get_by_attributes(conditions)
+
+        if not exists and certificate.get('name'):
             result = certificate_service.get_by_name(certificate['name'])
             if result:
                 exists = [result]
diff --git a/lemur/tests/test_certificates.py b/lemur/tests/test_certificates.py
index 1a4d644b..0f46e4a5 100644
--- a/lemur/tests/test_certificates.py
+++ b/lemur/tests/test_certificates.py
@@ -41,6 +41,89 @@ def test_get_or_increase_name(session, certificate):
     assert get_or_increase_name('certificate1', int(serial, 16)) == 'certificate1-{}-1'.format(serial)
 
 
+def test_get_all_certs(session, certificate):
+    from lemur.certificates.service import get_all_certs
+    assert len(get_all_certs()) > 1
+
+
+def test_get_by_name(session, certificate):
+    from lemur.certificates.service import get_by_name
+
+    found = get_by_name(certificate.name)
+
+    assert found
+
+
+def test_get_by_serial(session, certificate):
+    from lemur.certificates.service import get_by_serial
+
+    found = get_by_serial(certificate.serial)
+
+    assert found
+
+
+def test_delete_cert(session):
+    from lemur.certificates.service import delete, get
+    from lemur.tests.factories import CertificateFactory
+
+    delete_this = CertificateFactory(name='DELETEME')
+    session.commit()
+
+    cert_exists = get(delete_this.id)
+
+    # it needs to exist first
+    assert cert_exists
+
+    delete(delete_this.id)
+    cert_exists = get(delete_this.id)
+
+    # then not exist after delete
+    assert not cert_exists
+
+
+def test_get_by_attributes(session, certificate):
+    from lemur.certificates.service import get_by_attributes
+
+    # Should get one cert
+    certificate1 = get_by_attributes({
+        'name': 'SAN-san.example.org-LemurTrustUnittestsClass1CA2018-20171231-20471231'
+    })
+
+    # Should get one cert using multiple attrs
+    certificate2 = get_by_attributes({
+        'name': 'test-cert-11111111-1',
+        'cn': 'san.example.org'
+    })
+
+    # Should get multiple certs
+    multiple = get_by_attributes({
+        'cn': 'LemurTrust Unittests Class 1 CA 2018',
+        'issuer': 'LemurTrustUnittestsRootCA2018'
+    })
+
+    assert len(certificate1) == 1
+    assert len(certificate2) == 1
+    assert len(multiple) > 1
+
+
+def test_find_duplicates(session):
+    from lemur.certificates.service import find_duplicates
+
+    cert = {
+        'body': SAN_CERT_STR,
+        'chain': INTERMEDIATE_CERT_STR
+    }
+
+    dups1 = find_duplicates(cert)
+
+    cert['chain'] = ''
+
+    dups2 = find_duplicates(cert)
+
+    assert len(dups1) > 0
+    assert len(dups2) > 0
+
+
 def test_get_certificate_primitives(certificate):
     from lemur.certificates.service import get_certificate_primitives