Hello and thanks for using Just Answer.
I am Al and am happy to assist you with your enquiry.
Do you own if you both own the property as Joint tenants or tenants in common?
Well, as you hold the property as Tenants in common, your 50% share is 100% safe- your name is ***** ***** on the Deeds, and whenever anything happens to either of you, your respective 50% share will pass to whoever you have nominated as a beneficiary under your Will.
In the meantime, you both remain legal owners and neither of you can "steal" or trasfer the other's 50% share unless done so by committing fraud!
I hope this assists and answers your question.