Should I just slow down?

Also, do you find that you need to call those leads within 5 minutes to convert it to a client, or if are a little slow on the follow up have you still been successful converting them?

You might not be able to because they're super slow.  

My intent is to use this portfolio to accelerate my retirement horizon and develop a secondary stream of income that's less dependent on my physical time.  

I currently have little to no cash to put down as a down payment and I'm worried that will slow me down.

What's really slowing us down is the fact that we do this work remotely from Toronto, Canada.

I just read elsewhere that Las Vegas is up 13% on foreclosures from this time last year....however sales are also higher than last year...we are not seeing anytime type of slow down in the lower priced market.

Take it slow and get your processes in place. 

When you look at guys like T Boone Pickens who didn't make his first billion until he was in his 80's and still works a 40=60 hour work week, or Warren Buffet who really didn't become a billionaire until he was almost 70 and hasn't slowed down much, or even the "Colonal" who was 90 and working full time when he finally made his millions one can't help but think that at 70 there's still a lot of work to do.I'm just not one for sitting around doing nothing while there's still so much to do.

With lots of patience, lots of water, and very slow peeling it would come off in big strips.