diff --git a/cmd/frostfs-adm/internal/modules/morph/initialize_nns.go b/cmd/frostfs-adm/internal/modules/morph/initialize_nns.go
index edb7d6de5..15657a6d9 100644
--- a/cmd/frostfs-adm/internal/modules/morph/initialize_nns.go
+++ b/cmd/frostfs-adm/internal/modules/morph/initialize_nns.go
@@ -15,6 +15,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
+	nnsClient "github.com/nspcc-dev/neo-go/pkg/rpcclient/nns"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@@ -284,10 +285,11 @@ func parseNNSResolveResult(res stackitem.Item) (util.Uint160, error) {
 }
 
 func nnsIsAvailable(c Client, nnsHash util.Uint160, name string) (bool, error) {
-	switch ct := c.(type) {
+	switch c.(type) {
 	case *rpcclient.Client:
-		//lint:ignore SA1019 https://git.frostfs.info/TrueCloudLab/frostfs-node/issues/202
-		return ct.NNSIsAvailable(nnsHash, name)
+		inv := invoker.New(c, nil)
+		reader := nnsClient.NewReader(inv, nnsHash)
+		return reader.IsAvailable(name)
 	default:
 		b, err := unwrap.Bool(invokeFunction(c, nnsHash, "isAvailable", []any{name}, nil))
 		if err != nil {
diff --git a/cmd/frostfs-adm/internal/modules/morph/initialize_register.go b/cmd/frostfs-adm/internal/modules/morph/initialize_register.go
index 27e1590cf..b1542cc92 100644
--- a/cmd/frostfs-adm/internal/modules/morph/initialize_register.go
+++ b/cmd/frostfs-adm/internal/modules/morph/initialize_register.go
@@ -9,6 +9,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/io"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/neo"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/unwrap"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
@@ -116,10 +117,11 @@ func (c *initializeContext) transferNEOFinished(neoHash util.Uint160) (bool, err
 var errGetPriceInvalid = errors.New("`getRegisterPrice`: invalid response")
 
 func (c *initializeContext) getCandidateRegisterPrice() (int64, error) {
-	switch ct := c.Client.(type) {
+	switch c.Client.(type) {
 	case *rpcclient.Client:
-		//lint:ignore SA1019 https://git.frostfs.info/TrueCloudLab/frostfs-node/issues/202
-		return ct.GetCandidateRegisterPrice()
+		inv := invoker.New(c.Client, nil)
+		reader := neo.NewReader(inv)
+		return reader.GetRegisterPrice()
 	default:
 		neoHash := neo.Hash
 		res, err := invokeFunction(c.Client, neoHash, "getRegisterPrice", nil, nil)