What to do next?

[Joe Campbell]

I'm looking for a little guidance on where to go next in my investing portfolio.  A little about where I'm at:

1. I own 3 single family home rentals in Western MI, paid $35k cash for each, they are cash flowing about $5000/year each and current value is around 50k each. They are owned in separate LLC's (single owner) so I cannot refinance them and cash out without putting them in my name.

2. My primary residence is mortgaged at 205k and its worth about 300k. I have a HELOC on that with 45k available as needed.

3.  I currently have zero CC or Auto Debt.  Credit is about 740.  Only about 5k in savings currently.

My ultimate goal is to get to a total of $6000 in cash flowing properties per month.  

My question to the forum is what should I do next? I was thinking of applying for a new mortgage, purchasing a fixer upper here in Phoenix, then use part of the HELOC to pay the down payment as well as do repairs. After that I would rent it out and refinance it to get my cash back. Rinse and repeat.

What recommendations does the forum have?