Part C - Special Designations to Deal With Social Security and Veterans Benefits
A POA is not enough for you to manage your loved one's social security payments and provide information to the Social Security Administration, instead, you need a "Representative Payee" designation To get it, you must complete Form SSA-11 and apply in person at your nearest SSA office.
Similarly, to manage your loved one's veterans benefits, you must apply to be a "VA fiduciary". To do so, you need to submit a written request with your loved one's name and VA file number at your nearest regioinal VA office.
You can download the guide "Managing Someone Else's Money: Help for Agents Under a Power of Attorney" from the Consumer Financial Protection Bureau's website. It includes tips on avoiding financial scams and hiring an accountant, attorneys and other professionals to help your loved one!