Is it an automated voice attendant, is it a call center where you are routed to someone else eventually to get an answer, or is it a live, well trained staff member?

. :)  but its like any paid training the reality of deal flow is greatly glossed over.

May you deduct ongoing costs from the property like mortgage interest, replacing appliances, property management costs, etc with an SL?

I've watch Jerryll's free video training.

In my market there are 2 reasons that keeping is smart.  1) the historical long term appreciation is on going, going back to when records started tracking the appreciation 2) the property tax is near fixed cost.  

The garden unit tenants stopped paying rent, and I had no choice but to start the eviction process, which is still ongoing.

There maybe other training options as well but this is the main one I know of. 

You'll make a lot of mistakes which will train you what to look for in a PM. 

Real estate offers the potential for both ongoing income (from rents) and long-term value growth, which can diversify an investor’s portfolio beyond traditional instruments.

But if you’re new, relying on that razor-thin margin of error can feel like racing the clock in a marathon you’re not fully trained for.