@Andy Luick: thanks you Andy for that insight - I'm definitely a wannabe, gonnabe investor -that said, my primary concern is the agent trying to lock me into a blanket commission before we even get started, and before he's shown me any inventory. $3000 per deal guaranteed - really.
@Jeff Valentino - I agree it should be a partnership between myself and the realtor - I've done it in the past - but I wasn't an investor then. The agent who was referred to me to represent me as a buyer is already asking for $3000 guarantee - in the first instance, by the way, I found the property myself, but brought the realtor into the picture to make sure I had all the paperwork correct - big mistake.
Thank you both for your response. I do understand realtors not wanting to be spinning their wheels. Perhaps when I'm fully up, running and successful like you guys, I can afford to promise that kind of commission - but definitely not today.