Most of it is not legit.
With your experience, you would be a good candidate for a regional sales rep who does not have an admin. I got started this way helping my hubby because he had no customer service support. His customers started calling me vs the company HQ because they knew I knew where he was and how to get hold of him fast. I managed all his travel plans, etc.
We now have our own company in the same field, just working for ourselves from home vs working for someone else.
I also have an at home mom who is a whiz at Quickbooks "tutor" me. We usually do this over the phone or via email. I pay her $85/hour and if we are not on the phone, email or in person, we just prorate the amount.
Most companies will not want you to have the noise of children or pets in the background because it is vital to maintain the professionalism of the job.
Working at home is a job and work. It takes a lot of discipline.
Good luck to you.