Can I give someone power of attorney to sell my property? Yes. This special power of attorney allows your agent to sign a deed for the property.A Power of Attorney (hereinafter "POA") gives another person the authority to make personal and financial decisions on the principal's behalf. Stepbystep instructions about how to sign a deed to transfer real estate using a power of attorney. Deeds, plats, liens, powers of attorney, oil and gas leases, and many other documents. Learn about Texas Power of Attorney forms, including types, components, and how they help manage financial and healthcare decisions. Yes, under certain circumstances, you can sell someone's house if you have a Power of Attorney (POA) that grants you the authority to do so. A durable power of attorney is generally used to make plans for the care of your finances, property, and investments. A Texas real estate power of attorney empowers a principal to designate an agent for the sale, management, or mortgage of their real property. A real estate POA grants your agent the authority to buy, sell, or manage real property on your behalf.