diff --git a/asserter/server.go b/asserter/server.go
index 5895e801..6b025c45 100644
--- a/asserter/server.go
+++ b/asserter/server.go
@@ -319,18 +319,6 @@ func (a *Asserter) ConstructionPreprocessRequest(
 		)
 	}
 
-	if err := AssertUniqueAmounts(request.MaxFee); err != nil {
-		return fmt.Errorf("max fee %s is invalid: %w", types.PrintStruct(request.MaxFee), err)
-	}
-
-	if request.SuggestedFeeMultiplier != nil && *request.SuggestedFeeMultiplier < 0 {
-		return fmt.Errorf(
-			"suggested fee multiplier %f is invalid: %w",
-			*request.SuggestedFeeMultiplier,
-			ErrConstructionPreprocessRequestSuggestedFeeMultiplierIsNeg,
-		)
-	}
-
 	return nil
 }
 
diff --git a/asserter/server_test.go b/asserter/server_test.go
index 8441e3a9..618850b8 100644
--- a/asserter/server_test.go
+++ b/asserter/server_test.go
@@ -914,8 +914,6 @@ func TestConstructionDeriveRequest(t *testing.T) {
 }
 
 func TestConstructionPreprocessRequest(t *testing.T) {
-	positiveFeeMultiplier := float64(1.1)
-	negativeFeeMultiplier := float64(-1.1)
 	var tests = map[string]struct {
 		request *types.ConstructionPreprocessRequest
 		err     error
@@ -928,31 +926,9 @@ func TestConstructionPreprocessRequest(t *testing.T) {
 			err: nil,
 		},
 		"valid request with suggested fee multiplier": {
-			request: &types.ConstructionPreprocessRequest{
-				NetworkIdentifier:      validNetworkIdentifier,
-				Operations:             validOps,
-				SuggestedFeeMultiplier: &positiveFeeMultiplier,
-			},
-			err: nil,
-		},
-		"valid request with max fee": {
 			request: &types.ConstructionPreprocessRequest{
 				NetworkIdentifier: validNetworkIdentifier,
 				Operations:        validOps,
-				MaxFee: []*types.Amount{
-					validAmount,
-				},
-			},
-			err: nil,
-		},
-		"valid request with suggested fee multiplier and max fee": {
-			request: &types.ConstructionPreprocessRequest{
-				NetworkIdentifier: validNetworkIdentifier,
-				Operations:        validOps,
-				MaxFee: []*types.Amount{
-					validAmount,
-				},
-				SuggestedFeeMultiplier: &positiveFeeMultiplier,
 			},
 			err: nil,
 		},
@@ -997,25 +973,6 @@ func TestConstructionPreprocessRequest(t *testing.T) {
 			},
 			err: ErrOperationStatusNotEmptyForConstruction,
 		},
-		"negative suggested fee multiplier": {
-			request: &types.ConstructionPreprocessRequest{
-				NetworkIdentifier:      validNetworkIdentifier,
-				Operations:             validOps,
-				SuggestedFeeMultiplier: &negativeFeeMultiplier,
-			},
-			err: ErrConstructionPreprocessRequestSuggestedFeeMultiplierIsNeg,
-		},
-		"max fee with duplicate currency": {
-			request: &types.ConstructionPreprocessRequest{
-				NetworkIdentifier: validNetworkIdentifier,
-				Operations:        validOps,
-				MaxFee: []*types.Amount{
-					validAmount,
-					validAmount,
-				},
-			},
-			err: ErrCurrencyUsedMultipleTimes,
-		},
 	}
 
 	for name, test := range tests {