diff --git a/app/data/jsonSchemaForm/contactSchema.ts b/app/data/jsonSchemaForm/contactSchema.ts
index 69b3eb4e1d..35cbc25df1 100644
--- a/app/data/jsonSchemaForm/contactSchema.ts
+++ b/app/data/jsonSchemaForm/contactSchema.ts
@@ -23,20 +23,24 @@ const contactSchema = {
         "^(\\+?\\d{1,2}[\\s,-]?)?\\(?\\d{3}\\)?[\\s.-]?\\d{3}[\\s.-]?\\d{4}$",
     },
     phoneExt: {
-      type: "string",
+      type: [null, "string"],
       title: "Phone Extension",
+      default: undefined,
     },
     companyName: {
-      type: "string",
+      type: [null, "string"],
       title: "Company Name",
+      default: undefined,
     },
     contactPosition: {
-      type: "string",
+      type: [null, "string"],
       title: "Position",
+      default: undefined,
     },
     comments: {
-      type: "string",
+      type: [null, "string"],
       title: "Comments",
+      default: undefined,
     },
   },
 };
diff --git a/app/data/jsonSchemaForm/projectSchema.ts b/app/data/jsonSchemaForm/projectSchema.ts
index df8ef9c9a0..d01a9491c4 100644
--- a/app/data/jsonSchemaForm/projectSchema.ts
+++ b/app/data/jsonSchemaForm/projectSchema.ts
@@ -23,14 +23,15 @@ const projectSchema = {
       default: undefined,
     },
     summary: { type: "string", title: "Project Description" },
-    projectType: { type: "string", title: "Project Type" },
+    projectType: {
+      type: [null, "string"],
+      title: "Project Type",
+      default: undefined,
+    },
     score: {
-      type: "number",
+      type: [null, "number"],
       title: "Score",
-    },
-    rank: {
-      type: "number",
-      title: "Rank",
+      default: undefined,
     },
     operatorId: {
       type: "number",
@@ -56,14 +57,20 @@ const projectSchema = {
       anyOf: undefined,
     },
     additionalSectorInformation: {
-      type: "string",
+      type: [null, "string"],
       title: "Additional Sector Information",
+      default: undefined,
     },
     contractNumber: {
-      type: "string",
+      type: [null, "string"],
       title: "Contract Number",
+      default: undefined,
+    },
+    comments: {
+      type: [null, "string"],
+      title: "General Comments",
+      default: undefined,
     },
-    comments: { type: "string", title: "General Comments" },
   },
 };
 
diff --git a/schema/data/prod/json_schema/contact.json b/schema/data/prod/json_schema/contact.json
index fdd47f64c7..ef93b6ebdb 100644
--- a/schema/data/prod/json_schema/contact.json
+++ b/schema/data/prod/json_schema/contact.json
@@ -2,7 +2,7 @@
   "schema": {
     "$schema": "http://json-schema.org/draft-07/schema",
     "type": "object",
-    "required": ["givenName", "familyName", "email", "phone"],
+    "required": ["givenName", "familyName", "email"],
     "properties": {
       "givenName": {
         "type": "string",
@@ -14,27 +14,33 @@
       },
       "email": {
         "type": "string",
-        "title": "Email"
+        "title": "Email",
+        "pattern": "^[\\.\\w-]+@([\\w-]+\\.)+[\\w-]{2,4}$"
       },
       "phone": {
         "type": "string",
-        "title": "Phone"
+        "title": "Phone",
+        "pattern": "^(\\+?\\d{1,2}[\\s,-]?)?\\(?\\d{3}\\)?[\\s.-]?\\d{3}[\\s.-]?\\d{4}$"
       },
       "phoneExt": {
-        "type": "string",
-        "title": "Phone Extension"
+        "type": ["null", "string"],
+        "title": "Phone Extension",
+        "default": "undefined"
       },
       "companyName": {
-        "type": "string",
-        "title": "Company Name"
+        "type": ["null", "string"],
+        "title": "Company Name",
+        "default": "undefined"
       },
       "contactPosition": {
-        "type": "string",
-        "title": "Position"
+        "type": ["null", "string"],
+        "title": "Position",
+        "default": "undefined"
       },
       "comments": {
-        "type": "string",
-        "title": "Comments"
+        "type": ["null", "string"],
+        "title": "Comments",
+        "default": "undefined"
       }
     }
   }
diff --git a/schema/data/prod/json_schema/emission_intensity_report.json b/schema/data/prod/json_schema/emission_intensity_report.json
index 613a5d29f3..3538e60991 100644
--- a/schema/data/prod/json_schema/emission_intensity_report.json
+++ b/schema/data/prod/json_schema/emission_intensity_report.json
@@ -23,7 +23,7 @@
       "comments": {
         "type": ["null", "string"],
         "title": "General Comments",
-        "default": "null"
+        "default": null
       },
       "measurementPeriodStartDate": {
         "title": "TEIMP Start Date",
@@ -40,7 +40,7 @@
       "productionFunctionalUnit": {
         "title": "Production Functional Unit",
         "type": ["null", "string"],
-        "default": "null"
+        "default": null
       },
       "baselineEmissionIntensity": {
         "title": "Baseline Emission Intensity (BEI)",
diff --git a/schema/data/prod/json_schema/milestone.json b/schema/data/prod/json_schema/milestone.json
index 32eb2823e5..0431eab37f 100644
--- a/schema/data/prod/json_schema/milestone.json
+++ b/schema/data/prod/json_schema/milestone.json
@@ -26,19 +26,21 @@
         "title": "Report Due Date"
       },
       "submittedDate": {
-        "type": "string",
-        "title": "Report Received Date"
+        "type": ["null", "string"],
+        "title": "Report Received Date",
+        "default": "undefined"
       },
       "substantialCompletionDate": {
         "type": "string",
         "title": "Substantial Completion Date"
       },
       "certifiedBy": {
-        "type": "string",
-        "title": "Certifier"
+        "type": ["null", "string"],
+        "title": "Certifier",
+        "default": "undefined"
       },
       "certifierProfessionalDesignation": {
-        "type": "string",
+        "type": ["null", "string"],
         "title": "Professional Designation",
         "default": "Professional Engineer",
         "anyOf": [
@@ -80,20 +82,23 @@
                 "title": "Maximum Amount This Milestone"
               },
               "adjustedGrossAmount": {
-                "type": "number",
-                "title": "Gross Payment Amount This Milestone"
+                "type": ["null", "number"],
+                "title": "Gross Payment Amount This Milestone",
+                "default": "undefined"
               },
               "adjustedHoldbackAmount": {
                 "type": "number",
                 "title": "Holdback Amount This Milestone"
               },
               "adjustedNetAmount": {
-                "type": "number",
-                "title": "Net Payment Amount This Milestone"
+                "type": ["null", "number"],
+                "title": "Net Payment Amount This Milestone",
+                "default": "undefined"
               },
               "dateSentToCsnr": {
-                "type": "string",
-                "title": "Date Invoice Sent to CSNR"
+                "type": ["null", "string"],
+                "title": "Date Invoice Sent to CSNR",
+                "default": "undefined"
               }
             },
             "required": ["maximumAmount"]
@@ -117,8 +122,9 @@
                 "title": "Milestone Type"
               },
               "totalEligibleExpenses": {
-                "type": "number",
-                "title": "Total Eligible Expenses"
+                "type": ["null", "number"],
+                "title": "Total Eligible Expenses",
+                "default": "undefined"
               }
             }
           }
diff --git a/schema/data/prod/json_schema/operator.json b/schema/data/prod/json_schema/operator.json
index 34c3eb22d1..5026951e54 100644
--- a/schema/data/prod/json_schema/operator.json
+++ b/schema/data/prod/json_schema/operator.json
@@ -14,14 +14,16 @@
         "title": "Trade Name"
       },
       "bcRegistryId": {
-        "type": "string",
+        "type": ["null", "string"],
         "title": "BC Registry ID",
-        "pattern": "^[a-zA-Z]{1,3}[0-9]{7}$"
+        "pattern": "^[a-zA-Z]{1,3}[0-9]{7}$",
+        "default": "undefined"
       },
       "operatorCode": {
-        "type": "string",
+        "type": ["null", "string"],
         "title": "Operator Code",
-        "pattern": "^[A-Z]{4}$"
+        "pattern": "^[A-Z]{4}$",
+        "default": "undefined"
       }
     }
   }
diff --git a/schema/data/prod/json_schema/project.json b/schema/data/prod/json_schema/project.json
index 21a3d68dba..75755cf476 100644
--- a/schema/data/prod/json_schema/project.json
+++ b/schema/data/prod/json_schema/project.json
@@ -31,12 +31,14 @@
         "title": "Project Description"
       },
       "projectType": {
-        "type": "string",
-        "title": "Project Type"
+        "type": ["null", "string"],
+        "title": "Project Type",
+        "default": "undefined"
       },
       "score": {
-        "type": "number",
-        "title": "Score"
+        "type": ["null", "number"],
+        "title": "Score",
+        "default": "undefined"
       },
       "operatorId": {
         "type": "number",
@@ -62,16 +64,19 @@
         "anyOf": "undefined"
       },
       "additionalSectorInformation": {
-        "type": "string",
-        "title": "Additional Sector Information"
+        "type": ["null", "string"],
+        "title": "Additional Sector Information",
+        "default": "undefined"
       },
       "contractNumber": {
-        "type": "string",
-        "title": "Contract Number"
+        "type": ["null", "string"],
+        "title": "Contract Number",
+        "default": "undefined"
       },
       "comments": {
-        "type": "string",
-        "title": "General Comments"
+        "type": ["null", "string"],
+        "title": "General Comments",
+        "default": "undefined"
       }
     }
   }
diff --git a/schema/data/prod/json_schema/project_contact.json b/schema/data/prod/json_schema/project_contact.json
index d952a07af9..f06101a8c5 100644
--- a/schema/data/prod/json_schema/project_contact.json
+++ b/schema/data/prod/json_schema/project_contact.json
@@ -6,7 +6,8 @@
     "properties": {
       "contactId": {
         "title": "Contact",
-        "type": "number"
+        "type": ["null", "number"],
+        "default": "undefined"
       }
     }
   }
diff --git a/schema/data/prod/json_schema/project_manager.json b/schema/data/prod/json_schema/project_manager.json
index 9b4ef52638..7cad5a9067 100644
--- a/schema/data/prod/json_schema/project_manager.json
+++ b/schema/data/prod/json_schema/project_manager.json
@@ -5,8 +5,9 @@
     "title": "Project Manager",
     "properties": {
       "cifUserId": {
-        "type": "number",
-        "title": "Project Manager"
+        "type": ["null", "number"],
+        "title": "Project Manager",
+        "default": "undefined"
       }
     }
   }
diff --git a/schema/data/prod/json_schema/project_summary_report.json b/schema/data/prod/json_schema/project_summary_report.json
index c97d056f2a..77a6181a96 100644
--- a/schema/data/prod/json_schema/project_summary_report.json
+++ b/schema/data/prod/json_schema/project_summary_report.json
@@ -10,24 +10,29 @@
         "title": "Report Due Date"
       },
       "submittedDate": {
-        "type": "string",
-        "title": "Received Date"
+        "type": ["null", "string"],
+        "title": "Received Date",
+        "default": "undefined"
       },
       "comments": {
-        "type": "string",
-        "title": "General Comments"
+        "type": ["null", "string"],
+        "title": "General Comments",
+        "default": "undefined"
       },
       "projectSummaryReportPayment": {
         "title": "Project Summary Report Payment",
-        "type": "number"
+        "type": ["null", "number"],
+        "default": "undefined"
       },
       "paymentNotes": {
         "title": "Notes for the Payment",
-        "type": "string"
+        "type": ["null", "string"],
+        "default": "undefined"
       },
       "dateSentToCsnr": {
         "title": "Date Invoice Sent to CSNR",
-        "type": "string"
+        "type": ["null", "string"],
+        "default": "undefined"
       }
     }
   }