Steps 1, 2 and 3 are not a problem.
It's only with step 4 that you get into licensing issues.
If you charge a fee to advise her to buy a particular investment product, whether it's US treasury bonds, index funds, or corn futures, then you are probably in violation if you are not licensed.
Suppose you are not charging a fee, and you just give her some friendly, generic advice, like, for example, "Well, if you want to invest in something where there is no risk to the principal, you can just buy US government bonds." That's probably okay, but then she says, "Okay, can you show me how to do that?"
So you help her open an online account at Schwab or eTrade. At this point I don't think there's a violation. But if you start to show her how to buy bonds, she's going to ask you which bonds she should buy. And even if you just help her choose the maturities, you are now giving financial advice. If you are not charging, it might be okay, but you're right on the edge.
Just because you are not charging a fee does not mean you are not in violation.
If you show her how to select bonds, and let her choose the maturities, based on when she thinks she will need the money, and you are not charging a fee, that might be okay.
But what if she says, "Well, what if something unexpected comes up, and I need the money before the maturity date?"
Now you find yourself explaining that she can sell the bonds, but may take a loss on principal, because bond prices la la la la la la la la la la...
and you have probably crossed into the realm of financial advice.
With all that being said, if you do not charge a fee, and you only do this for a couple people in your life, I think it is very unlikely that you would ever come up on the radar of a regulatory agency.
The only way you would become the subject of an investigation is if someone else finds out what you are doing for her, and they think you are exploiting her, or just giving her really bad advice, and they file a complaint...