diff --git a/requirements/base.txt b/requirements/base.txt
index 6e060043b9..5d6c01573b 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -6,7 +6,7 @@ boto3>=1.19.5,==1.*
 jmespath~=0.10.0
 PyYAML~=5.3
 cookiecutter~=2.1.1
-aws-sam-translator==1.47.0
+aws-sam-translator==1.48.0
 #docker minor version updates can include breaking changes. Auto update micro version only.
 docker~=4.2.0
 dateparser~=1.0
diff --git a/requirements/reproducible-linux.txt b/requirements/reproducible-linux.txt
index 499abaa629..12e2bcc7cc 100644
--- a/requirements/reproducible-linux.txt
+++ b/requirements/reproducible-linux.txt
@@ -17,10 +17,10 @@ aws-lambda-builders==1.18.0 \
     --hash=sha256:c0bd4b4288f0aa9cba27493065f5fb986425b5b49620b93a391620403eeb97e0 \
     --hash=sha256:c5235699d36b8edda7e649fbc3a23ed868eda1e15c4a83528df33939bdb75754
     # via aws-sam-cli (setup.py)
-aws-sam-translator==1.47.0 \
-    --hash=sha256:7bf8e8564cbbdcb1a3a71e6bd8551b4f8488014c5a4d67af5e92d0966c3b1ef8 \
-    --hash=sha256:d2fe471a126f58a28ef505d03ea2d37a2f282312ce592a3250f4d8c8efca6946 \
-    --hash=sha256:e42f33d736fdfccd0b38e70a550e2f7eaebbad75dabe697dd40ad16380d11699
+aws-sam-translator==1.48.0 \
+    --hash=sha256:7171037323dfa30f8f73e9bccb9210e4c384a585e087219a9518a5204f0a2c44 \
+    --hash=sha256:be18dfa3dfe7ab291d281667c5f73ac62dbe6bfe86df7d122e4258b906b736f0 \
+    --hash=sha256:ca4f8f9910d7713aeaba59346775bfb3198f6acb47c6704572f9bd3fc0fb5bf0
     # via aws-sam-cli (setup.py)
 backports-zoneinfo==0.2.1 \
     --hash=sha256:17746bd546106fa389c51dbea67c8b7c8f0d14b5526a579ca6ccf5ed72c526cf \
diff --git a/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple.yaml b/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple.yaml
new file mode 100644
index 0000000000..6bfe59c91e
--- /dev/null
+++ b/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple.yaml
@@ -0,0 +1,67 @@
+AWSTemplateFormatVersion: '2010-09-09'
+Transform: AWS::Serverless-2016-10-31
+Description: >
+  apigateway-2402
+
+  Sample SAM Template for apigateway-2402
+
+Resources:
+            
+  ApiGatewayAdminOne:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.one.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+      EndpointConfiguration:
+        Type: REGIONAL
+
+            
+  ApiGatewayAdminTwo:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.two.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+      EndpointConfiguration:
+        Type: REGIONAL
+        
+            
+  ApiGatewayAdminThree:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.three.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+      EndpointConfiguration:
+        Type: REGIONAL
diff --git a/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple_intrinsic_hostedzoneid.yaml b/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple_intrinsic_hostedzoneid.yaml
new file mode 100644
index 0000000000..bb0eaf6b27
--- /dev/null
+++ b/tests/functional/commands/validate/lib/models/api_with_custom_domain_route53_multiple_intrinsic_hostedzoneid.yaml
@@ -0,0 +1,71 @@
+AWSTemplateFormatVersion: '2010-09-09'
+Transform: AWS::Serverless-2016-10-31
+Description: >
+  apigateway-2402
+
+  Sample SAM Template for apigateway-2402
+
+Parameters:
+  MyHostedZoneId:
+    Type: String
+
+Resources:
+            
+  ApiGatewayAdminOne:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.one.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: !Ref MyHostedZoneId
+      EndpointConfiguration:
+        Type: REGIONAL
+
+            
+  ApiGatewayAdminTwo:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.two.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: !Sub "{{MyHostedZoneId}}"
+      EndpointConfiguration:
+        Type: REGIONAL
+        
+            
+  ApiGatewayAdminThree:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.three.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: !Ref MyHostedZoneId
+      EndpointConfiguration:
+        Type: REGIONAL
diff --git a/tests/functional/commands/validate/lib/models/api_with_fail_on_warnings.yaml b/tests/functional/commands/validate/lib/models/api_with_fail_on_warnings.yaml
new file mode 100644
index 0000000000..354eeaf761
--- /dev/null
+++ b/tests/functional/commands/validate/lib/models/api_with_fail_on_warnings.yaml
@@ -0,0 +1,22 @@
+Resources:
+  ApiGatewayApi:
+    Type: AWS::Serverless::Api
+    Properties:
+      StageName: prod
+      FailOnWarnings: true
+  ApiFunction: # Adds a GET api endpoint at "/" to the ApiGatewayApi via an Api event
+    Type: AWS::Serverless::Function
+    Properties:
+      Events:
+        ApiEvent:
+          Type: Api
+          Properties:
+            Path: /
+            Method: get
+            RestApiId:
+              Ref: ApiGatewayApi
+      Runtime: python3.7
+      Handler: index.handler
+      InlineCode: |
+        def handler(event, context):
+            return {'body': 'Hello World!', 'statusCode': 200}
diff --git a/tests/functional/commands/validate/lib/models/http_api_with_custom_domain_route53_multiple.yaml b/tests/functional/commands/validate/lib/models/http_api_with_custom_domain_route53_multiple.yaml
new file mode 100644
index 0000000000..21832b61dd
--- /dev/null
+++ b/tests/functional/commands/validate/lib/models/http_api_with_custom_domain_route53_multiple.yaml
@@ -0,0 +1,30 @@
+Resources:
+  MyApi1:
+    Type: AWS::Serverless::HttpApi
+    Properties:
+      Domain:
+        DomainName: admin.one.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+
+  MyApi2:
+    Type: AWS::Serverless::HttpApi
+    Properties:
+      Domain:
+        DomainName: admin.two.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+
+  MyApi3:
+    Type: AWS::Serverless::HttpApi
+    Properties:
+      Domain:
+        DomainName: admin.three.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
\ No newline at end of file
diff --git a/tests/functional/commands/validate/lib/models/mixed_api_with_custom_domain_route53_multiple.yaml b/tests/functional/commands/validate/lib/models/mixed_api_with_custom_domain_route53_multiple.yaml
new file mode 100644
index 0000000000..7461e530cb
--- /dev/null
+++ b/tests/functional/commands/validate/lib/models/mixed_api_with_custom_domain_route53_multiple.yaml
@@ -0,0 +1,36 @@
+AWSTemplateFormatVersion: '2010-09-09'
+Transform: AWS::Serverless-2016-10-31
+Description: >
+  apigateway-2402
+
+  Sample SAM Template for apigateway-2402
+
+Resources:
+  MyHttpApi:
+    Type: AWS::Serverless::HttpApi
+    Properties:
+      Domain:
+        DomainName: admin.one.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+
+  MyRestApi:
+    Type: AWS::Serverless::Api
+    Properties:
+      Name: App-Prod-Web
+      StageName: Prod
+      TracingEnabled: true
+      MethodSettings:
+        - LoggingLevel: Info
+          ResourcePath: '/*'
+          HttpMethod: '*'
+      Domain:
+        DomainName: admin.two.amazon.com
+        CertificateArn: arn::cert::abc
+        EndpointConfiguration: REGIONAL
+        Route53:
+          HostedZoneId: "abc123456"
+      EndpointConfiguration:
+        Type: REGIONAL