Dangerous to transfer a deed from your principal to yourself under a power of attorney. You have a fiduciary duty to the principal, and your transfer could be construed by a court as self-dealing and a conflict of interest.
Not saying that this would ever happen, however, a disgruntled beneficary of the owner could sue the spit out of you and might succeed. So, you may want to have the various beneficiaries of the owner sign a consent stating that they have been informed as to the purpose and effect of your action and that they each consent.
Then, if the owner can sign the deed, and he/she hasn't been legally judged incompetent, then you can have him/her sign a deed from him/her to him/her and you, with a notary there to acknowledge the signing. Then record the deed with the county and you're good to go.
Warning: depending on how you take title, the property may be reassessed for property taxes.
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