In your shoes, I'd consider the amount of the accounts. A couple thousand dollars to get a professional opinion from a worthy fiduciary is a cheap move to ensure safety if she's talking about seven figure sums. If the accounts are in the $5,000-15,000 range a fee based advisor might be a high cost percentage wise.
The actual transfers are fairly easy if she has online skills. I did one recently. Vanguard has a department for specialized transfers. I phoned them, they prepared a couple forms online, then they walked me through the process of me accessing the forms online to complete and verify them. Mechanically, they required that I first have the company being transferred from convert all the assets in the old accounts into cash. Then the cash was transferred in kind to Vanguard. When that process is completed, I can then invest the cash into other Vanguard investments. If Godmother is not computer savvy, the experience might be different, perhaps involving paper forms, but I suspect the fact of selling the old assets and then transferring cash will be similar.
As
@Sibley implied, helping her online involves risk of being blamed for transactions that other people don't like, or anything that goes wrong somehow. Less so if don't inherit anything ever and you make no profit, but still.
