diff --git a/app/models/form/sales/questions/buyer1_mortgage.rb b/app/models/form/sales/questions/buyer1_mortgage.rb
index f226f956c..baaf00d4c 100644
--- a/app/models/form/sales/questions/buyer1_mortgage.rb
+++ b/app/models/form/sales/questions/buyer1_mortgage.rb
@@ -2,8 +2,8 @@ class Form::Sales::Questions::Buyer1Mortgage < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "inc1mort"
-    @check_answer_label = "Buyer 1's income used for mortgage application"
-    @header = "Was buyer 1's income used for a mortgage application?"
+    @check_answer_label = "Buyer 1’s income used for mortgage application"
+    @header = "Was buyer 1’s income used for a mortgage application?"
     @type = "radio"
     @answer_options = ANSWER_OPTIONS
     @check_answers_card_number = 1
@@ -12,5 +12,13 @@ class Form::Sales::Questions::Buyer1Mortgage < ::Form::Question
   ANSWER_OPTIONS = {
     "1" => { "value" => "Yes" },
     "2" => { "value" => "No" },
+    "3" => { "value" => "Don’t know" },
   }.freeze
+
+  def displayed_answer_options(_log, _user = nil)
+    {
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
+    }
+  end
 end
diff --git a/app/models/form/sales/questions/buyer1_previous_tenure.rb b/app/models/form/sales/questions/buyer1_previous_tenure.rb
index f075e615c..b41fbbabd 100644
--- a/app/models/form/sales/questions/buyer1_previous_tenure.rb
+++ b/app/models/form/sales/questions/buyer1_previous_tenure.rb
@@ -2,8 +2,8 @@ class Form::Sales::Questions::Buyer1PreviousTenure < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "prevten"
-    @check_answer_label = "Buyer 1's previous tenure"
-    @header = "What was buyer 1's previous tenure?"
+    @check_answer_label = "Buyer 1’s previous tenure"
+    @header = "What was buyer 1’s previous tenure?"
     @type = "radio"
     @answer_options = ANSWER_OPTIONS
   end
diff --git a/app/models/form/sales/questions/buyer2_mortgage.rb b/app/models/form/sales/questions/buyer2_mortgage.rb
index 5697aea15..884137df1 100644
--- a/app/models/form/sales/questions/buyer2_mortgage.rb
+++ b/app/models/form/sales/questions/buyer2_mortgage.rb
@@ -2,8 +2,8 @@ class Form::Sales::Questions::Buyer2Mortgage < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "inc2mort"
-    @check_answer_label = "Buyer 2's income used for mortgage application"
-    @header = "Was buyer 2's income used for a mortgage application?"
+    @check_answer_label = "Buyer 2’s income used for mortgage application"
+    @header = "Was buyer 2’s income used for a mortgage application?"
     @type = "radio"
     @answer_options = ANSWER_OPTIONS
     @check_answers_card_number = 2
@@ -12,5 +12,13 @@ class Form::Sales::Questions::Buyer2Mortgage < ::Form::Question
   ANSWER_OPTIONS = {
     "1" => { "value" => "Yes" },
     "2" => { "value" => "No" },
+    "3" => { "value" => "Don’t know" },
   }.freeze
+
+  def displayed_answer_options(_log, _user = nil)
+    {
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
+    }
+  end
 end
diff --git a/app/models/form/sales/questions/buyers_organisations.rb b/app/models/form/sales/questions/buyers_organisations.rb
index 735a1563d..ec76aebcd 100644
--- a/app/models/form/sales/questions/buyers_organisations.rb
+++ b/app/models/form/sales/questions/buyers_organisations.rb
@@ -14,8 +14,18 @@ class Form::Sales::Questions::BuyersOrganisations < ::Form::Question
     "pregother" => { "value" => "Other private registered provider (PRP) - housing association" },
     "pregla" => { "value" => "Local Authority" },
     "pregghb" => { "value" => "Help to Buy Agent" },
+    "pregblank" => { "value" => "None of the above" },
   }.freeze
 
+  def displayed_answer_options(_log, _user = nil)
+    {
+      "pregyrha" => { "value" => "Their private registered provider (PRP) - housing association" },
+      "pregother" => { "value" => "Other private registered provider (PRP) - housing association" },
+      "pregla" => { "value" => "Local Authority" },
+      "pregghb" => { "value" => "Help to Buy Agent" },
+    }
+  end
+
   def unanswered_error_message
     "At least one option must be selected of these four"
   end
diff --git a/app/models/form/sales/questions/mortgageused.rb b/app/models/form/sales/questions/mortgageused.rb
index 8c75750d8..ad18652c4 100644
--- a/app/models/form/sales/questions/mortgageused.rb
+++ b/app/models/form/sales/questions/mortgageused.rb
@@ -11,5 +11,13 @@ class Form::Sales::Questions::Mortgageused < ::Form::Question
   ANSWER_OPTIONS = {
     "1" => { "value" => "Yes" },
     "2" => { "value" => "No" },
+    "3" => { "value" => "Don’t know" },
   }.freeze
+
+  def displayed_answer_options(_log, _user = nil)
+    {
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
+    }
+  end
 end
diff --git a/app/models/validations/sales/sale_information_validations.rb b/app/models/validations/sales/sale_information_validations.rb
index c4ce023bb..a1deb94f5 100644
--- a/app/models/validations/sales/sale_information_validations.rb
+++ b/app/models/validations/sales/sale_information_validations.rb
@@ -46,7 +46,7 @@ module Validations::Sales::SaleInformationValidations
 
   def validate_discounted_ownership_value(record)
     return unless record.value && record.deposit && record.ownershipsch
-    return unless record.mortgage || record.mortgageused == 2
+    return unless record.mortgage || record.mortgageused == 2 || record.mortgageused == 3
     return unless record.discount || record.grant || record.type == 29
 
     discount_amount = record.discount ? record.value * record.discount / 100 : 0
diff --git a/app/models/validations/sales/soft_validations.rb b/app/models/validations/sales/soft_validations.rb
index c1704d948..a44e0a293 100644
--- a/app/models/validations/sales/soft_validations.rb
+++ b/app/models/validations/sales/soft_validations.rb
@@ -60,7 +60,7 @@ module Validations::Sales::SoftValidations
   end
 
   def shared_ownership_deposit_invalid?
-    return unless mortgage || mortgageused == 2
+    return unless mortgage || mortgageused == 2 || mortgageused == 3
     return unless cashdis || !is_type_discount?
     return unless deposit && value && equity
 
diff --git a/db/migrate/20230301144555_add_pregblank.rb b/db/migrate/20230301144555_add_pregblank.rb
new file mode 100644
index 000000000..308ca5e10
--- /dev/null
+++ b/db/migrate/20230301144555_add_pregblank.rb
@@ -0,0 +1,5 @@
+class AddPregblank < ActiveRecord::Migration[7.0]
+  def change
+    add_column :sales_logs, :pregblank, :integer
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index d1668b738..bc7a504a7 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_02_15_112932) do
+ActiveRecord::Schema[7.0].define(version: 2023_03_01_144555) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -531,6 +531,7 @@ ActiveRecord::Schema[7.0].define(version: 2023_02_15_112932) do
     t.integer "prevshared"
     t.integer "staircasesale"
     t.string "old_id"
+    t.integer "pregblank"
     t.index ["bulk_upload_id"], name: "index_sales_logs_on_bulk_upload_id"
     t.index ["created_by_id"], name: "index_sales_logs_on_created_by_id"
     t.index ["old_id"], name: "index_sales_logs_on_old_id", unique: true
diff --git a/spec/models/form/sales/questions/buyer1_mortgage_spec.rb b/spec/models/form/sales/questions/buyer1_mortgage_spec.rb
index 59ae45afc..df47cd1ce 100644
--- a/spec/models/form/sales/questions/buyer1_mortgage_spec.rb
+++ b/spec/models/form/sales/questions/buyer1_mortgage_spec.rb
@@ -6,6 +6,7 @@ RSpec.describe Form::Sales::Questions::Buyer1Mortgage, type: :model do
   let(:question_id) { nil }
   let(:question_definition) { nil }
   let(:page) { instance_double(Form::Page) }
+  let(:log) { create(:sales_log) }
 
   it "has correct page" do
     expect(question.page).to eq(page)
@@ -16,11 +17,11 @@ RSpec.describe Form::Sales::Questions::Buyer1Mortgage, type: :model do
   end
 
   it "has the correct header" do
-    expect(question.header).to eq("Was buyer 1's income used for a mortgage application?")
+    expect(question.header).to eq("Was buyer 1’s income used for a mortgage application?")
   end
 
   it "has the correct check_answer_label" do
-    expect(question.check_answer_label).to eq("Buyer 1's income used for mortgage application")
+    expect(question.check_answer_label).to eq("Buyer 1’s income used for mortgage application")
   end
 
   it "has the correct type" do
@@ -35,6 +36,14 @@ RSpec.describe Form::Sales::Questions::Buyer1Mortgage, type: :model do
     expect(question.answer_options).to eq({
       "1" => { "value" => "Yes" },
       "2" => { "value" => "No" },
+      "3" => { "value" => "Don’t know" },
+    })
+  end
+
+  it "has the correct displayed_answer_options" do
+    expect(question.displayed_answer_options(log)).to eq({
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
     })
   end
 
diff --git a/spec/models/form/sales/questions/buyer1_previous_tenure_spec.rb b/spec/models/form/sales/questions/buyer1_previous_tenure_spec.rb
index ae1da940a..a63b695a5 100644
--- a/spec/models/form/sales/questions/buyer1_previous_tenure_spec.rb
+++ b/spec/models/form/sales/questions/buyer1_previous_tenure_spec.rb
@@ -6,6 +6,7 @@ RSpec.describe Form::Sales::Questions::Buyer1PreviousTenure, type: :model do
   let(:question_id) { nil }
   let(:question_definition) { nil }
   let(:page) { instance_double(Form::Page) }
+  let(:log) { create(:sales_log) }
 
   it "has correct page" do
     expect(question.page).to eq(page)
@@ -16,11 +17,11 @@ RSpec.describe Form::Sales::Questions::Buyer1PreviousTenure, type: :model do
   end
 
   it "has the correct header" do
-    expect(question.header).to eq("What was buyer 1's previous tenure?")
+    expect(question.header).to eq("What was buyer 1’s previous tenure?")
   end
 
   it "has the correct check_answer_label" do
-    expect(question.check_answer_label).to eq("Buyer 1's previous tenure")
+    expect(question.check_answer_label).to eq("Buyer 1’s previous tenure")
   end
 
   it "has the correct type" do
diff --git a/spec/models/form/sales/questions/buyer2_mortgage_spec.rb b/spec/models/form/sales/questions/buyer2_mortgage_spec.rb
index bb561af43..5bf83a2d0 100644
--- a/spec/models/form/sales/questions/buyer2_mortgage_spec.rb
+++ b/spec/models/form/sales/questions/buyer2_mortgage_spec.rb
@@ -6,6 +6,7 @@ RSpec.describe Form::Sales::Questions::Buyer2Mortgage, type: :model do
   let(:question_id) { nil }
   let(:question_definition) { nil }
   let(:page) { instance_double(Form::Page) }
+  let(:log) { create(:sales_log) }
 
   it "has correct page" do
     expect(question.page).to eq(page)
@@ -16,11 +17,11 @@ RSpec.describe Form::Sales::Questions::Buyer2Mortgage, type: :model do
   end
 
   it "has the correct header" do
-    expect(question.header).to eq("Was buyer 2's income used for a mortgage application?")
+    expect(question.header).to eq("Was buyer 2’s income used for a mortgage application?")
   end
 
   it "has the correct check_answer_label" do
-    expect(question.check_answer_label).to eq("Buyer 2's income used for mortgage application")
+    expect(question.check_answer_label).to eq("Buyer 2’s income used for mortgage application")
   end
 
   it "has the correct type" do
@@ -35,6 +36,14 @@ RSpec.describe Form::Sales::Questions::Buyer2Mortgage, type: :model do
     expect(question.answer_options).to eq({
       "1" => { "value" => "Yes" },
       "2" => { "value" => "No" },
+      "3" => { "value" => "Don’t know" },
+    })
+  end
+
+  it "has the correct displayed_answer_options" do
+    expect(question.displayed_answer_options(log)).to eq({
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
     })
   end
 
diff --git a/spec/models/form/sales/questions/buyers_organisations_spec.rb b/spec/models/form/sales/questions/buyers_organisations_spec.rb
index d9f61df5f..88af9917d 100644
--- a/spec/models/form/sales/questions/buyers_organisations_spec.rb
+++ b/spec/models/form/sales/questions/buyers_organisations_spec.rb
@@ -41,6 +41,18 @@ RSpec.describe Form::Sales::Questions::BuyersOrganisations, type: :model do
 
   it "has the correct answer_options" do
     expect(question.answer_options).to eq(
+      {
+        "pregyrha" => { "value" => "Their private registered provider (PRP) - housing association" },
+        "pregother" => { "value" => "Other private registered provider (PRP) - housing association" },
+        "pregla" => { "value" => "Local Authority" },
+        "pregghb" => { "value" => "Help to Buy Agent" },
+        "pregblank" => { "value" => "None of the above" },
+      },
+    )
+  end
+
+  it "has the correct displayed_answer_options" do
+    expect(question.displayed_answer_options(FactoryBot.create(:sales_log))).to eq(
       {
         "pregyrha" => { "value" => "Their private registered provider (PRP) - housing association" },
         "pregother" => { "value" => "Other private registered provider (PRP) - housing association" },
diff --git a/spec/models/form/sales/questions/mortgageused_spec.rb b/spec/models/form/sales/questions/mortgageused_spec.rb
index e958de8ea..a31f063c9 100644
--- a/spec/models/form/sales/questions/mortgageused_spec.rb
+++ b/spec/models/form/sales/questions/mortgageused_spec.rb
@@ -6,6 +6,7 @@ RSpec.describe Form::Sales::Questions::Mortgageused, type: :model do
   let(:question_id) { nil }
   let(:question_definition) { nil }
   let(:page) { instance_double(Form::Page) }
+  let(:log) { create(:sales_log) }
 
   it "has correct page" do
     expect(question.page).to eq(page)
@@ -35,6 +36,7 @@ RSpec.describe Form::Sales::Questions::Mortgageused, type: :model do
     expect(question.answer_options).to eq({
       "1" => { "value" => "Yes" },
       "2" => { "value" => "No" },
+      "3" => { "value" => "Don’t know" },
     })
   end
 
@@ -45,4 +47,11 @@ RSpec.describe Form::Sales::Questions::Mortgageused, type: :model do
   it "has the correct hint" do
     expect(question.hint_text).to be_nil
   end
+
+  it "has the correct displayed_answer_options" do
+    expect(question.displayed_answer_options(log)).to eq({
+      "1" => { "value" => "Yes" },
+      "2" => { "value" => "No" },
+    })
+  end
 end