Sometimes BPs seem to want to be told what to do about their kids but won't admit it. The won't admit they are lost, they don't know what to do, and they are afraid to hurt their baby. SO when us SPs provide some sound advice they struggle and fight it, and then later you find out they did and said what we had suggested. Must be ego, pride, and not wanting to acknowledge that sometimes us SPs are right!!

Unfortunately.. if you asked the questions in your last post.. you didn't really get to the meat of the issue.

5 hours.. no.. that's not how it works... or is it 5 hours a day.. 5 hours a week? 

The reality is that neither your SD nor her father are equipped to handle this task

Your husband seems inept with technology.. otherwise why did you have to overfunction for him all those years.

Your SD has never taken initiative on her own.. the only reason she is taking any now?  she thinks it gets her out of class.. 

She will not do the school work.

Did you ask.. "how do we know you will stay on track?"

What happens if you can't complete the assignments on your own.. miss deadlines or find online work bad.

What happens when you miss the social aspects of school.

And.. what are you going to do with all this "free time".. work so that you aren't just sitting around all day.

Where will you be when you do these classes.. how much will it cost.. and who is paying for it.  Who will monitor you with the online program.. your mom? your dad?

You can wash your hands of it.. I guess.. but the chance this will succeed when she can't manage to get to class.. turn in art projects? none.. she will be living with you for a few years.

I would put my foot down with your husband and tell him

Well.. if she is doing this.. she is doing it from her mom's.. she will NOT be at our house all day without supervision.  that is my line in the sand.. it will not be crossed.

Well you got your answers, now the rest is on them.  All you can do is set a boundary that SD can’t live there full time after she turns 18. 

then I doubt you will be a strong online student because you need even more discipline and self motivation to be  strong at online learning.  

I went back to school as an employed 40ish BM/SM of 5.  I attended night classes for 10 years during which I took whatever correspondence classes I could to lessen the time stress.  I naively thought they would be easier, but NO, they were harder cuz you actually had to know the info to pass the tests.  In class, there was always that factor where one's personal charm might tip the scales.

So, if her classes require a test to pass, it might be harder than if she'd attended class. 

Hmmm back in my days as a teacher, I volunteered to participate in a summer school program where kids could get math credit using a series of online computer modules. 

Basically it worked like this: we sat the kids down in front of the computer, they clicked through screens reading, doing some practice problems then the program would administer a "test". The test could, however, be repeated as many times as necessary in order to pass. 

As anticipated the kids sped through the reading slides, not learning a single thing, ignored the practice problem and took the test about 10 times randomly selecting answers in hopes that this time they would get enough right to pass and move on to the next module. When they had completed all the modules, they didn't have to come back.

I and the rest of the volunteers were there just to make sure butts were in seats, not to teach. It was a waste of time IMO but they all did get their course credit in the end.

Little Idiot's college experience with online remedial classes has been the exact same. Modules followed by tests with no real consequences for failing them.

A quick Google search tells me CA doesn't have any state exam requirements for students to meet for graduation? I don't know what her classes are going to be like but if they are anything like the one I proctored then all she has to do is sit there and do her time. She wouldn't have to actually learn anything or prove mastery of the subject. 

DH think he solved all her and your problems in one " The TALK".  Session. With  no follow up.  She told you what you wanted to hear.  No punishment, for her actions.    Good luck.  Bet by tomorrow we will be back to same old.