diff --git a/pkg/innerring/processors/governance/processor.go b/pkg/innerring/processors/governance/processor.go
index e18a389f..845994eb 100644
--- a/pkg/innerring/processors/governance/processor.go
+++ b/pkg/innerring/processors/governance/processor.go
@@ -116,10 +116,7 @@ func New(p *Params) (*Processor, error) {
 	}
 
 	// result is cached by neo-go, so we can pre-calc it
-	designate, err := p.MainnetClient.GetDesignateHash()
-	if err != nil {
-		return nil, fmt.Errorf("could not get designate hash: %w", err)
-	}
+	designate := p.MainnetClient.GetDesignateHash()
 
 	return &Processor{
 		log:            p.Log,
diff --git a/pkg/morph/client/client.go b/pkg/morph/client/client.go
index 272cb254..804e80d4 100644
--- a/pkg/morph/client/client.go
+++ b/pkg/morph/client/client.go
@@ -9,14 +9,15 @@ import (
 	"time"
 
 	lru "github.com/hashicorp/golang-lru"
-	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/gas"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/nep17"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/rolemgmt"
 	sc "github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@@ -50,13 +51,14 @@ type Client struct {
 	client   *rpcclient.WSClient // neo-go websocket client
 	rpcActor *actor.Actor        // neo-go RPC actor
 	gasToken *nep17.Token        // neo-go GAS token wrapper
+	rolemgmt *rolemgmt.Contract  // neo-go Designation contract wrapper
 
 	acc     *wallet.Account // neo account
 	accAddr util.Uint160    // account's address
 
 	signer *transaction.Signer
 
-	notary *notary
+	notary *notaryInfo
 
 	cfg cfg
 
@@ -366,15 +368,8 @@ func (c *Client) NeoFSAlphabetList() (res keys.PublicKeys, err error) {
 }
 
 // GetDesignateHash returns hash of the native `RoleManagement` contract.
-func (c *Client) GetDesignateHash() (res util.Uint160, err error) {
-	c.switchLock.RLock()
-	defer c.switchLock.RUnlock()
-
-	if c.inactive {
-		return util.Uint160{}, ErrConnectionLost
-	}
-
-	return c.client.GetNativeContractHash(nativenames.Designation)
+func (c *Client) GetDesignateHash() util.Uint160 {
+	return rolemgmt.Hash
 }
 
 func (c *Client) roleList(r noderoles.Role) (keys.PublicKeys, error) {
@@ -383,7 +378,7 @@ func (c *Client) roleList(r noderoles.Role) (keys.PublicKeys, error) {
 		return nil, fmt.Errorf("can't get chain height: %w", err)
 	}
 
-	return c.client.GetDesignatedByRole(r, height)
+	return c.rolemgmt.GetDesignatedByRole(r, height)
 }
 
 // tries to resolve sc.Parameter from the arg.
@@ -524,3 +519,9 @@ func (c *Client) inactiveMode() {
 		c.cfg.inactiveModeCb()
 	}
 }
+
+func (c *Client) setActor(act *actor.Actor) {
+	c.rpcActor = act
+	c.gasToken = nep17.New(act, gas.Hash)
+	c.rolemgmt = rolemgmt.New(act)
+}
diff --git a/pkg/morph/client/constructor.go b/pkg/morph/client/constructor.go
index 378e2873..958af332 100644
--- a/pkg/morph/client/constructor.go
+++ b/pkg/morph/client/constructor.go
@@ -8,12 +8,10 @@ import (
 	"time"
 
 	lru "github.com/hashicorp/golang-lru"
-	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
-	"github.com/nspcc-dev/neo-go/pkg/rpcclient/nep17"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
@@ -119,6 +117,7 @@ func New(key *keys.PrivateKey, opts ...Option) (*Client, error) {
 	cli.endpoints.init(cfg.endpoints)
 
 	var err error
+	var act *actor.Actor
 	if cfg.singleCli != nil {
 		// return client in single RPC node mode that uses
 		// predefined WS client
@@ -129,51 +128,42 @@ func New(key *keys.PrivateKey, opts ...Option) (*Client, error) {
 		// inactive mode will be enabled
 		cli.client = cfg.singleCli
 
-		cli.rpcActor, err = newActor(cfg.singleCli, acc, *cfg)
+		act, err = newActor(cfg.singleCli, acc, *cfg)
 		if err != nil {
 			return nil, fmt.Errorf("could not create RPC actor: %w", err)
 		}
-
-		cli.gasToken, err = newGasToken(cli.client, cli.rpcActor)
-		if err != nil {
-			return nil, fmt.Errorf("could not create gas token actor: %w", err)
-		}
 	} else {
-		cli.client, cli.rpcActor, cli.gasToken, err = cli.newCli(cli.endpoints.list[0].Address)
+		cli.client, act, err = cli.newCli(cli.endpoints.list[0].Address)
 		if err != nil {
 			return nil, fmt.Errorf("could not create RPC client: %w", err)
 		}
 	}
+	cli.setActor(act)
 
 	go cli.notificationLoop()
 
 	return cli, nil
 }
 
-func (c *Client) newCli(endpoint string) (*rpcclient.WSClient, *actor.Actor, *nep17.Token, error) {
+func (c *Client) newCli(endpoint string) (*rpcclient.WSClient, *actor.Actor, error) {
 	cli, err := rpcclient.NewWS(c.cfg.ctx, endpoint, rpcclient.Options{
 		DialTimeout: c.cfg.dialTimeout,
 	})
 	if err != nil {
-		return nil, nil, nil, fmt.Errorf("WS client creation: %w", err)
+		return nil, nil, fmt.Errorf("WS client creation: %w", err)
 	}
 
 	err = cli.Init()
 	if err != nil {
-		return nil, nil, nil, fmt.Errorf("WS client initialization: %w", err)
+		return nil, nil, fmt.Errorf("WS client initialization: %w", err)
 	}
 
 	act, err := newActor(cli, c.acc, c.cfg)
 	if err != nil {
-		return nil, nil, nil, fmt.Errorf("RPC actor creation: %w", err)
+		return nil, nil, fmt.Errorf("RPC actor creation: %w", err)
 	}
 
-	gas, err := newGasToken(cli, act)
-	if err != nil {
-		return nil, nil, nil, fmt.Errorf("gas token actor: %w", err)
-	}
-
-	return cli, act, gas, nil
+	return cli, act, nil
 }
 
 func newActor(ws *rpcclient.WSClient, acc *wallet.Account, cfg cfg) (*actor.Actor, error) {
@@ -188,15 +178,6 @@ func newActor(ws *rpcclient.WSClient, acc *wallet.Account, cfg cfg) (*actor.Acto
 	}})
 }
 
-func newGasToken(cli *rpcclient.WSClient, a *actor.Actor) (*nep17.Token, error) {
-	gasHash, err := cli.GetNativeContractHash(nativenames.Gas)
-	if err != nil {
-		return nil, fmt.Errorf("gas contract hash: %w", err)
-	}
-
-	return nep17.New(a, gasHash), nil
-}
-
 func newClientCache() cache {
 	c, _ := lru.New(100) // returns error only if size is negative
 	return cache{
diff --git a/pkg/morph/client/multi.go b/pkg/morph/client/multi.go
index d72c0794..cdd53267 100644
--- a/pkg/morph/client/multi.go
+++ b/pkg/morph/client/multi.go
@@ -36,7 +36,7 @@ func (c *Client) switchRPC() bool {
 	// Iterate endpoints in the order of decreasing priority.
 	for c.endpoints.curr = range c.endpoints.list {
 		newEndpoint := c.endpoints.list[c.endpoints.curr].Address
-		cli, act, gas, err := c.newCli(newEndpoint)
+		cli, act, err := c.newCli(newEndpoint)
 		if err != nil {
 			c.logger.Warn("could not establish connection to the switched RPC node",
 				zap.String("endpoint", newEndpoint),
@@ -62,8 +62,7 @@ func (c *Client) switchRPC() bool {
 		}
 
 		c.client = cli
-		c.rpcActor = act
-		c.gasToken = gas
+		c.setActor(act)
 
 		if c.cfg.switchInterval != 0 && !c.switchIsActive.Load() &&
 			c.endpoints.list[c.endpoints.curr].Priority != c.endpoints.list[0].Priority {
@@ -165,7 +164,7 @@ mainLoop:
 
 				tryE := e.Address
 
-				cli, act, gas, err := c.newCli(tryE)
+				cli, act, err := c.newCli(tryE)
 				if err != nil {
 					c.logger.Warn("could not create client to the higher priority node",
 						zap.String("endpoint", tryE),
@@ -188,8 +187,7 @@ mainLoop:
 					c.client.Close()
 					c.cache.invalidate()
 					c.client = cli
-					c.rpcActor = act
-					c.gasToken = gas
+					c.setActor(act)
 					c.endpoints.curr = i
 
 					c.switchLock.Unlock()
diff --git a/pkg/morph/client/notary.go b/pkg/morph/client/notary.go
index 2c0cbed5..2cdf04e8 100644
--- a/pkg/morph/client/notary.go
+++ b/pkg/morph/client/notary.go
@@ -14,6 +14,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/neorpc"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/notary"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	sc "github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@@ -24,7 +25,7 @@ import (
 )
 
 type (
-	notary struct {
+	notaryInfo struct {
 		txValidTime  uint32 // minimum amount of blocks when mainTx will be valid
 		roundTime    uint32 // extra amount of blocks to synchronize sidechain height diff of inner ring nodes
 		fallbackTime uint32 // mainTx's ValidUntilBlock - fallbackTime + 1 is when fallbackTx is sent
@@ -97,19 +98,13 @@ func (c *Client) EnableNotarySupport(opts ...NotaryOption) error {
 		}
 	}
 
-	notaryCfg := &notary{
+	notaryCfg := &notaryInfo{
 		proxy:          cfg.proxy,
 		txValidTime:    cfg.txValidTime,
 		roundTime:      cfg.roundTime,
 		fallbackTime:   cfg.fallbackTime,
 		alphabetSource: cfg.alphabetSource,
-	}
-
-	var err error
-
-	notaryCfg.notary, err = c.client.GetNativeContractHash(nativenames.Notary)
-	if err != nil {
-		return fmt.Errorf("can't get notary contract script hash: %w", err)
+		notary:         notary.Hash,
 	}
 
 	c.notary = notaryCfg
@@ -132,7 +127,7 @@ func (c *Client) ProbeNotary() (res bool) {
 		return false
 	}
 
-	_, err := c.client.GetNativeContractHash(nativenames.Notary)
+	_, err := c.client.GetContractStateByAddressOrName(nativenames.Notary)
 	return err == nil
 }
 
@@ -421,11 +416,7 @@ func (c *Client) NotarySignAndInvokeTX(mainTx *transaction.Transaction) error {
 }
 
 func (c *Client) notaryInvokeAsCommittee(method string, nonce, vub uint32, args ...interface{}) error {
-	designate, err := c.GetDesignateHash()
-	if err != nil {
-		return err
-	}
-
+	designate := c.GetDesignateHash()
 	return c.notaryInvoke(true, true, designate, nonce, &vub, method, args...)
 }