diff --git a/app/models/lettings_log.rb b/app/models/lettings_log.rb
index 124140b06..590498c3a 100644
--- a/app/models/lettings_log.rb
+++ b/app/models/lettings_log.rb
@@ -44,23 +44,23 @@ class LettingsLog < Log
   scope :filter_by_propcode, ->(propcode) { where("propcode ILIKE ?", "%#{propcode}%") }
   scope :filter_by_location_postcode, ->(postcode_full) { left_joins(:location).where("REPLACE(locations.postcode, ' ', '') ILIKE ?", "%#{postcode_full.delete(' ')}%") }
   scope :search_by, lambda { |param|
-                      filter_by_location_postcode(param)
-                          .or(filter_by_tenant_code(param))
-                          .or(filter_by_propcode(param))
-                          .or(filter_by_postcode(param))
-                          .or(filter_by_id(param))
-                    }
+    filter_by_location_postcode(param)
+        .or(filter_by_tenant_code(param))
+        .or(filter_by_propcode(param))
+        .or(filter_by_postcode(param))
+        .or(filter_by_id(param))
+  }
   scope :filter_by_before_startdate, ->(date) { where("lettings_logs.startdate >= ?", date) }
   scope :unresolved, -> { where(unresolved: true) }
   scope :filter_by_organisation, ->(org, _user = nil) { where(owning_organisation: org).or(where(managing_organisation: org)) }
   scope :duplicate_logs, lambda { |log|
-                           attrs_to_check = %w[tenancycode propcode startdate age1 sex1 ecstat1 tcharge postcode_full]
-                           where(log.slice(*attrs_to_check))
-                           .where.not(id: log.id)
-                           .where.not(status: "deleted")
-                           .where.not("startdate IS NULL OR age1 IS NULL OR sex1 IS NULL OR ecstat1 IS NULL OR tcharge IS NULL OR postcode_full IS NULL OR propcode IS NULL OR needstype IS NULL")
-                           .where("location_id = ? OR needstype = 1", log.location_id)
-                         }
+    attrs_to_check = %w[tenancycode propcode startdate age1 sex1 ecstat1 tcharge postcode_full]
+    where(log.slice(*attrs_to_check))
+    .where.not(id: log.id)
+    .where.not(status: "deleted")
+    .where.not("startdate IS NULL OR age1 IS NULL OR sex1 IS NULL OR ecstat1 IS NULL OR tcharge IS NULL OR postcode_full IS NULL OR propcode IS NULL OR needstype IS NULL")
+    .where("location_id = ? OR needstype = 1", log.location_id)
+  }
   scope :duplicate_logs_for_organisation, ->(org, log) { filter_by_organisation(org).duplicate_logs(log) }
 
   AUTOGENERATED_FIELDS = %w[id status created_at updated_at discarded_at].freeze
diff --git a/spec/models/lettings_log_spec.rb b/spec/models/lettings_log_spec.rb
index b5b5e99cb..3299bce59 100644
--- a/spec/models/lettings_log_spec.rb
+++ b/spec/models/lettings_log_spec.rb
@@ -2921,6 +2921,24 @@ RSpec.describe LettingsLog do
         end
       end
     end
+
+    context "when filtering duplicate logs for organisation" do
+      let(:organisation) { create(:organisation) }
+      let(:log) { create(:lettings_log, :duplicate, owning_organisation: organisation) }
+      let!(:duplicate_log_same_owning_org) { create(:lettings_log, :duplicate, owning_organisation: organisation) }
+      let!(:duplicate_log_same_managing_org) { create(:lettings_log, :duplicate, managing_organisation: organisation) }
+      let!(:duplicate_log_different_org) { create(:lettings_log, :duplicate) }
+
+      it "returns all duplicate logs for given log" do
+        expect(described_class.duplicate_logs_for_organisation(organisation, log).count).to eq(2)
+      end
+
+      it "returns duplicate log" do
+        expect(described_class.duplicate_logs_for_organisation(organisation, log)).to include(duplicate_log_same_owning_org)
+        expect(described_class.duplicate_logs_for_organisation(organisation, log)).to include(duplicate_log_same_managing_org)
+        expect(described_class.duplicate_logs_for_organisation(organisation, log)).not_to include(duplicate_log_different_org)
+      end
+    end
   end
 
   describe "#retirement_age_for_person" do
diff --git a/spec/models/sales_log_spec.rb b/spec/models/sales_log_spec.rb
index c382c364b..39b77ed03 100644
--- a/spec/models/sales_log_spec.rb
+++ b/spec/models/sales_log_spec.rb
@@ -251,6 +251,22 @@ RSpec.describe SalesLog, type: :model do
     end
   end
 
+  context "when filtering duplicate logs for organisation" do
+    let(:organisation) { create(:organisation) }
+    let(:log) { create(:sales_log, :duplicate, owning_organisation: organisation) }
+    let!(:duplicate_log_same_owning_org) { create(:sales_log, :duplicate, owning_organisation: organisation) }
+    let!(:duplicate_log_different_org) { create(:sales_log, :duplicate) }
+
+    it "returns all duplicate logs for given log" do
+      expect(described_class.duplicate_logs_for_organisation(organisation, log).count).to eq(1)
+    end
+
+    it "returns duplicate log" do
+      expect(described_class.duplicate_logs_for_organisation(organisation, log)).to include(duplicate_log_same_owning_org)
+      expect(described_class.duplicate_logs_for_organisation(organisation, log)).not_to include(duplicate_log_different_org)
+    end
+  end
+
   describe "derived variables" do
     let(:sales_log) { create(:sales_log, :completed) }