I've been informed that completing the course alone may not be sufficient to pass the exam, so I’m seeking advice on how to prepare effectively once I complete it.Currently, my only other resources include a YouTube video, five practice exams, and a textbook.If you have any additional suggestions—whether online or in-person, paid or free—that could help me effectively prepare for the exam, I would greatly appreciate them.

In addition to rent, you can setup late fees and other fees to be collected. 

You need to do a cost-benefit analysis to determine if it's worth it.  

What's the benefit of the $149 sub through TurboTenant?

But this comes with pockets of C/D neighborhoods, and higher potential for headaches;  in addition, appreciation in these zips has probably maxed out for a while.

We're right next to CA but get the benefits of no state income tax, 4th lowest property taxes, much more friendly landlord/tenant laws, no serious weather, proximity to Lake Tahoe, stable job growth/population growth, etc. 

I wouldn't suggest you buy a single-family home to live in because the additional cost outweighs the benefits.

How many years managing is equivalent to the benefit of the 20% down? 

I don't have the 10% for the down but thinking of using a HELOC to get the money and then add it into the calculator.

Then they'll charge an additional $2,400 for filing tax returns.