Many were clearly caught off guard by the detail that their distribution could be halted and their investment converted to stock.  

The old guard gets burned out and retires.

Loan interest is deductible based on the use of the loan, not the asset securing the loan. 

If it does you have zero asset/income, a much larger debt secured by your personal residence, at just the time you probably also lose your job due to economic conditions, and all those nice folks teaching you about sno ball, infinity, you’re your own bank, etc., will be long gone.  

Toward the end before closing, they gave bunch of excuses like security breach in their company, don't like the file and the property.

So I picked up a few books which includes, "The Book on Investing In Real Estate With No (and Low) Money Down," and "The Book on Rental Property Investing," both by Brandon Turner, which introduced me to the BiggerPockets community.With a decade of experience in property management under my belt, along with my property management certifications and an NC real estate broker’s license (with Broker-In-Charge designation), I’m eager to leverage my background to secure long-term financial stability for my family.

If you can save up 20% down in a low-cost market like Cleveland, you could use a DSCR loan to secure financing while you still don't have any stable income. 

For example I have an account for each property and a sub-account just for the security deposits for those properties.

What do you do to ensure that the tenant is responsible for security deposit disputes since that is the largest reason for owner lawsuitsHow familiar are you with the newly changed laws that can affect you the owner if they are not used correctly?

Ensuring a solid lease agreement and security deposit will help mitigate this.