Additionally, I purchased a pool of notes within my SDIRA and one note outside my IRA.I purchased one outside of my SDIRA so I can learn to work a note myself, first hand. 

You can easily achieve 8-10% on your money.

Should I purchase multiple condos with my own cash or should I purchase more while leveraging with the banks (day a 25% down payment each time).Positive cash for is important for me because I still want to live off of the passive income.But can we still achieve the same positive cash flow by purchasing, for example, twenty condos with 25% down or is it better just to purchase around right if then cash (to guarantee my passive income)?

You achieve your goals, now see if you can achieve the seller's goals, might delay the RE commission or part of it, the agent might carry back a note for part of the commissions and interest on that should easily be covered by you in rents.

Can anyone offer a rental structure that would achieve this?

@Nick Versetto Fortunately for me being in commercial real estate as an agent I was able to witness this firsthand before I had a chance to make that mistake myself.

Welcome to Pro, and congrats :) We definitely appreciate the support and promise to do our best to continually make BiggerPockets an amazing tool to help you achieve greater success! 

The exact methods to achieve this and the possible risks involved are a little scary or intimidating, especially because I am just not trying to learn what this or that means (which seems different depending on who you ask).I am very excited to be here and to see what others are doing to make their dreams come true.

@Troy HardisterWelcome to the site.Good luck on achieving you RE goals.

I am new to real estate investments but am looking to network and seeing how I could help others in what they are trying to achieve.