diff --git a/src/Admin/AdminConsole/Models/OrganizationEditModel.cs b/src/Admin/AdminConsole/Models/OrganizationEditModel.cs
index 4ba22130f..48340df70 100644
--- a/src/Admin/AdminConsole/Models/OrganizationEditModel.cs
+++ b/src/Admin/AdminConsole/Models/OrganizationEditModel.cs
@@ -143,7 +143,7 @@ public class OrganizationEditModel : OrganizationViewModel
     [Display(Name = "SCIM")]
     public bool UseScim { get; set; }
     [Display(Name = "Secrets Manager")]
-    public bool UseSecretsManager { get; set; }
+    public new bool UseSecretsManager { get; set; }
     [Display(Name = "Self Host")]
     public bool SelfHost { get; set; }
     [Display(Name = "Users Get Premium")]
diff --git a/src/Api/AdminConsole/Public/Models/MemberBaseModel.cs b/src/Api/AdminConsole/Public/Models/MemberBaseModel.cs
index c56117ae7..dc3f91d49 100644
--- a/src/Api/AdminConsole/Public/Models/MemberBaseModel.cs
+++ b/src/Api/AdminConsole/Public/Models/MemberBaseModel.cs
@@ -1,8 +1,11 @@
 using System.ComponentModel.DataAnnotations;
+using System.Diagnostics.CodeAnalysis;
 using Bit.Core.Entities;
 using Bit.Core.Enums;
 using Bit.Core.Models.Data.Organizations.OrganizationUsers;
 
+#nullable enable
+
 namespace Bit.Api.AdminConsole.Public.Models;
 
 public abstract class MemberBaseModel
@@ -25,6 +28,7 @@ public abstract class MemberBaseModel
         }
     }
 
+    [SetsRequiredMembers]
     public MemberBaseModel(OrganizationUserUserDetails user)
     {
         if (user == null)
@@ -46,14 +50,13 @@ public abstract class MemberBaseModel
     /// </summary>
     [Required]
     [EnumDataType(typeof(OrganizationUserType))]
-    public OrganizationUserType? Type { get; set; }
+    public required OrganizationUserType? Type { get; set; }
     /// <summary>
     /// External identifier for reference or linking this member to another system, such as a user directory.
     /// </summary>
     /// <example>external_id_123456</example>
     [StringLength(300)]
-    public string ExternalId { get; set; }
-
+    public string? ExternalId { get; set; }
     /// <summary>
     /// The member's custom permissions if the member has a Custom role. If not supplied, all custom permissions will
     /// default to false.
diff --git a/src/Api/AdminConsole/Public/Models/Response/MemberResponseModel.cs b/src/Api/AdminConsole/Public/Models/Response/MemberResponseModel.cs
index ab6ecbca4..499c27cfc 100644
--- a/src/Api/AdminConsole/Public/Models/Response/MemberResponseModel.cs
+++ b/src/Api/AdminConsole/Public/Models/Response/MemberResponseModel.cs
@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Diagnostics.CodeAnalysis;
 using System.Text.Json.Serialization;
 using Bit.Api.Models.Public.Response;
 using Bit.Core.Entities;
@@ -16,6 +17,7 @@ public class MemberResponseModel : MemberBaseModel, IResponseModel
     [JsonConstructor]
     public MemberResponseModel() { }
 
+    [SetsRequiredMembers]
     public MemberResponseModel(OrganizationUser user, IEnumerable<CollectionAccessSelection> collections) : base(user)
     {
         if (user == null)
@@ -31,6 +33,7 @@ public class MemberResponseModel : MemberBaseModel, IResponseModel
         ResetPasswordEnrolled = user.ResetPasswordKey != null;
     }
 
+    [SetsRequiredMembers]
     public MemberResponseModel(OrganizationUserUserDetails user, bool twoFactorEnabled,
         IEnumerable<CollectionAccessSelection> collections) : base(user)
     {
diff --git a/src/Core/Models/Mail/Provider/ProviderInitiateDeleteModel.cs b/src/Core/Models/Mail/Provider/ProviderInitiateDeleteModel.cs
index 196decb5e..a5071527f 100644
--- a/src/Core/Models/Mail/Provider/ProviderInitiateDeleteModel.cs
+++ b/src/Core/Models/Mail/Provider/ProviderInitiateDeleteModel.cs
@@ -8,10 +8,8 @@ public class ProviderInitiateDeleteModel : BaseMailModel
         Token,
         ProviderNameUrlEncoded);
 
-    public string WebVaultUrl { get; set; }
     public string Token { get; set; }
     public Guid ProviderId { get; set; }
-    public string SiteName { get; set; }
     public string ProviderName { get; set; }
     public string ProviderNameUrlEncoded { get; set; }
     public string ProviderBillingEmail { get; set; }