So if a fax comes through for me, my team lead doesn't have a problem with forwarding items to me. 

Specify reasonable items that you'll fix as a landlord and what maybe unreasonable.

If you have a problem tenant, just cut your losses and move on.

But in my case, since this is a rental, the ARV does not matter (until I sell).as far as knowing what things cost... it's kind of like groceries - you have no idea what a 5lb of gluten free flour costs until you start buying it regularly. rehabs are almost the same way, just not as consistent as grocery items.

They did buy and renovate a house but instead of flipping, they refinance it at a big profit and rented it out.I could afford a 40k loss but it would be a big hit (about 1/2 of my total cash in the bank). 

You will have vacancy, you will have bad tenants, you will replace expensive items. 

What is of importance is their 30,60,90 day pay records, credit limits, percentage of credit used, what type of credit items they are defaulting on etc.

Auxiliary items may be utility bills or other items that prove that someone, most likely yourself, lived there. 

With an S-Corp, you can run into basis limitation issues that would prevent you from deducting losses from your rental activity (if you are able to take those deductions) - just one of the many reasons not to own rental property in an S-Corp. 

You can use fancy words such as 'using leverage to enhance returns' etc. all day long, but the fact remains: if as a client I loose 50% of my premiums to commissions and fees I don't care what kind of leverage I gain as a result, it would practically be impossible to recover my losses.