diff --git a/tests/test_auction_flow.sh b/tests/test_auction_flow.sh
index e1a1792..c7cfa4f 100755
--- a/tests/test_auction_flow.sh
+++ b/tests/test_auction_flow.sh
@@ -4,13 +4,17 @@
 HERE=$(cd $(dirname $BASH_SOURCE) && pwd)
 source $HERE/testutil.sh
 
-# echo $BOB
-# cosmos-testd q cosmostest show-auction $(get_last_auction_index) | jq
-# exit 0
+cosmos-testd tx cosmostest new-auction asdf asdf 200 token $(now + 3500) \
+    -y --from bob \
+    | expect_fail "Can't create auction below min lease period" 
+
+cosmos-testd tx cosmostest new-auction asdf asdf 200 token $(now + 8200000) \
+    -y --from bob \
+    | expect_fail "Can't create auction above max lease period" 
 
 before=$(get_balance $BOB token)
 
-cosmos-testd tx cosmostest new-auction asdf asdf 200 token $(now + 100) \
+cosmos-testd tx cosmostest new-auction asdf asdf 200 token $(now + 3700) \
     -y --from bob \
     | expect_success "New auction is created" 
 
diff --git a/x/cosmostest/auctionconfig/config.go b/x/cosmostest/auctionconfig/config.go
index 8687150..d913e36 100644
--- a/x/cosmostest/auctionconfig/config.go
+++ b/x/cosmostest/auctionconfig/config.go
@@ -1,10 +1,12 @@
 package auctionconfig
 
-// Length of the auction in blocks-- currently 10.
-// Assuming a block time of 3sec, this should be ~30sec.
 const (
 	// Times
-	AuctionTime = 10
+	AuctionTime = 10 // 10 blocks = ~10-30 seconds
+
+	// Lease Period Requirements (seconds)
+	MinLeasePeriod = 3_600     // 1 hour
+	MaxLeasePeriod = 8_035_200 // 3 months
 
 	// Gas Fees
 	AuctionGas = 10
diff --git a/x/cosmostest/keeper/auction_state.go b/x/cosmostest/keeper/auction_state.go
index c0e6a7f..ce81fb2 100644
--- a/x/cosmostest/keeper/auction_state.go
+++ b/x/cosmostest/keeper/auction_state.go
@@ -38,7 +38,7 @@ func (k Keeper) FinalizeExpiredAuctions(ctx sdk.Context) {
 				return errors.Errorf("could not get highest bid for auction %s: %s", auctionId, err)
 			}
 
-			// Remainig Unpaid: Full bid amount
+			// Remaining Unpaid: Full bid amount
 			auction.Remaining = auction.Best.Amount
 
 			// clear auction
diff --git a/x/cosmostest/keeper/msg_server_new_auction.go b/x/cosmostest/keeper/msg_server_new_auction.go
index 76895df..beae755 100644
--- a/x/cosmostest/keeper/msg_server_new_auction.go
+++ b/x/cosmostest/keeper/msg_server_new_auction.go
@@ -18,10 +18,28 @@ func (k msgServer) NewAuction(goCtx context.Context, msg *types.MsgNewAuction) (
 
 	next, found := k.Keeper.GetNextAuction(ctx)
 	if !found {
-		return nil, errors.New("Auction not found")
+		return nil, errors.New("unable to get next auction index")
 	}
 	index := strconv.FormatUint(next.AuctionId, 10)
 
+	auctionLen := msg.LeaseEnd - uint64(ctx.BlockTime().Unix())
+
+	if auctionLen < auctionconfig.MinLeasePeriod {
+		return nil, fmt.Errorf(
+			"Auction length %d is below min lease period of %d",
+			auctionLen,
+			auctionconfig.MinLeasePeriod,
+		)
+	}
+
+	if auctionLen > auctionconfig.MaxLeasePeriod {
+		return nil, fmt.Errorf(
+			"Auction length %d is above max lease period of %d",
+			auctionLen,
+			auctionconfig.MaxLeasePeriod,
+		)
+	}
+
 	auction := types.Auction{
 		Index:       index,
 		Name:        msg.Name,