I need a land plugin for player who can use /lclaim to claim a land of 15 blocks from the block standing in all sides. And a player can own 10 lands. If a player owns a land then none can use his doors, chests, beds, etc place/break and when someone go to somones land he will receive that enters __'s land.
Well, this is some kind of plots request as I understand. You can use MyPlot by @jasonwynn10. Note that it doesn't have door protection. I don't know if it protects beds and chests, but it does protect placing/breaking blocks. Also it has a 2 plot limit per player but I think you can change it..? You can find more info on MyPlot's GitHub page.
Why not use EconomyLand? You have to specify the two corners with /startp and /endp instead of just claiming the space around you, but it has most the functions you need for land protection.