Hello, I hope you are well. My name is***** am a solicitor advocate and I will be assisting you with your question today. I am very sorry to hear of the problem you are experiencing and I will do my best to help you with this matter.
The quickest and safest way to protect you financial interests in the property would be with a Declaration of Trust, also known as a Deed of Trust, is a legally-binding document recording the financial arrangements between joint property owners, and/or anyone else with a financial interest in the property.
It can include how much each person contributes to the deposit, and how much will be repaid to them, what percentage of the property each person will own, and how the money will be split if the property is sold.
It may be helpful to instruct a local solicitor who specialises in this area of law. You can find a local firm using the Law Society website. www.lawsociety.org.uk
Once on that website, you can click on the find a solicitor option located just above the Law Society logo. Select quick search, then select the area of law required and enter your post code. A list of local firms will then be displayed. Look for a conveyance solicitor as they can easily draft this document for you.