diff --git a/spec/models/form/sales/pages/number_of_others_in_property_spec.rb b/spec/models/form/sales/pages/number_of_others_in_property_spec.rb
index fe036bf72..2fdc0bd84 100644
--- a/spec/models/form/sales/pages/number_of_others_in_property_spec.rb
+++ b/spec/models/form/sales/pages/number_of_others_in_property_spec.rb
@@ -1,13 +1,19 @@
 require "rails_helper"
 
 RSpec.describe Form::Sales::Pages::NumberOfOthersInProperty, type: :model do
+  include CollectionTimeHelper
+
   subject(:page) { described_class.new(page_id, page_definition, subsection, joint_purchase:) }
 
   let(:page_id) { "number_of_others_in_property" }
   let(:page_definition) { nil }
   let(:joint_purchase) { false }
-  let(:form) { Form.new(nil, 2024, [], "sales") }
-  let(:subsection) { instance_double(Form::Subsection, form:, enabled?: true, depends_on: nil) }
+  let(:form) { instance_double(Form, start_date: current_collection_start_date, start_year_2026_or_later?: true, start_year_2025_or_later?: false, depends_on_met: true) }
+  let(:subsection) { instance_double(Form::Subsection, enabled?: true, depends_on: nil) }
+
+  before do
+    allow(subsection).to receive(:form).and_return(form)
+  end
 
   it "has correct subsection" do
     expect(page.subsection).to eq(subsection)
@@ -39,6 +45,8 @@ RSpec.describe Form::Sales::Pages::NumberOfOthersInProperty, type: :model do
       end
 
       context "with 2024 logs" do
+        let(:form) { instance_double(Form, start_date: collection_start_date_for_year(2024), start_year_2026_or_later?: false, start_year_2025_or_later?: false, depends_on_met: true) }
+
         context "with joint purchase" do
           context "when buyer has seen privacy notice and buyer interviewed" do
             let(:log) { build(:sales_log, privacynotice: 1, jointpur: 1, noint: 0) }
@@ -109,7 +117,27 @@ RSpec.describe Form::Sales::Pages::NumberOfOthersInProperty, type: :model do
       end
 
       context "with 2025 logs" do
-        let(:form) { Form.new(nil, 2025, [], "sales") }
+        let(:form) { instance_double(Form, start_date: collection_start_date_for_year(2025), start_year_2026_or_later?: false, start_year_2025_or_later?: true, depends_on_met: true) }
+
+        context "and staircase is not 1" do
+          let(:log) { build(:sales_log, privacynotice: 1, jointpur: 1, noint: 0, staircase: 2) }
+
+          it "routes to the page" do
+            expect(page.routed_to?(log, nil)).to be(true)
+          end
+        end
+
+        context "and staircase is 1" do
+          let(:log) { build(:sales_log, privacynotice: 1, jointpur: 1, noint: 0, staircase: 1) }
+
+          it "does not route to the page" do
+            expect(page).not_to be_routed_to(log, nil)
+          end
+        end
+      end
+
+      context "with 2026 logs" do
+        let(:form) { instance_double(Form, start_date: current_collection_start_date, start_year_2026_or_later?: true, start_year_2025_or_later?: true, depends_on_met: true) }
 
         context "and staircase is not 1" do
           let(:log) { build(:sales_log, privacynotice: 1, jointpur: 1, noint: 0, staircase: 2) }
diff --git a/spec/models/form/sales/pages/person_known_spec.rb b/spec/models/form/sales/pages/person_known_spec.rb
index 910a7e148..c462331eb 100644
--- a/spec/models/form/sales/pages/person_known_spec.rb
+++ b/spec/models/form/sales/pages/person_known_spec.rb
@@ -7,8 +7,8 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
   let(:page_definition) { nil }
   let(:person_index) { 2 }
 
-  context "with 2024 form" do
-    let(:form) { Form.new(nil, 2024, [], "sales") }
+  context "with pre-2026 form" do
+    let(:form) { instance_double(Form, start_year_2026_or_later?: false) }
     let(:subsection) { instance_double(Form::Subsection, form:) }
 
     it "has correct subsection" do
@@ -154,10 +154,34 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
         ])
       end
     end
+
+    context "with person 6" do
+      let(:page_id) { "person_6_known" }
+      let(:person_index) { 6 }
+
+      it "has correct depends_on" do
+        expect(page.depends_on).to eq([
+          {
+            "not_joint_purchase?" => true,
+            "hholdcount" => {
+              "operator" => ">=",
+              "operand" => 5,
+            },
+          },
+          {
+            "joint_purchase?" => true,
+            "hholdcount" => {
+              "operator" => ">=",
+              "operand" => 4,
+            },
+          },
+        ])
+      end
+    end
   end
 
   context "with 2026 form" do
-    let(:form) { Form.new(nil, 2026, [], "sales") }
+    let(:form) { instance_double(Form, start_year_2026_or_later?: true) }
     let(:subsection) { instance_double(Form::Subsection, form:) }
 
     context "with person 2" do
@@ -246,5 +270,29 @@ RSpec.describe Form::Sales::Pages::PersonKnown, type: :model do
         ])
       end
     end
+
+    context "with person 6" do
+      let(:page_id) { "person_6_known" }
+      let(:person_index) { 6 }
+
+      it "has correct depends_on" do
+        expect(page.depends_on).to eq([
+          {
+            "not_joint_purchase?" => true,
+            "hholdcount" => {
+              "operator" => ">=",
+              "operand" => 6,
+            },
+          },
+          {
+            "joint_purchase?" => true,
+            "hholdcount" => {
+              "operator" => ">=",
+              "operand" => 6,
+            },
+          },
+        ])
+      end
+    end
   end
 end