So I'm looking at a future BRRRR project at which time I will already have 4-5 other mortgages.

@Nick Baldwin In addition to what he correctly said, the supplier Must have served/delivered to you (usually by certified mail) a Notice To Owner form, within 45 days of their First supplying materials, letting you know they were supplying materials on your job.  

I would like to buy a 4-5 pre made sequence of post cards/letters for a direct mail campaign does anyone out there make these?

Make sure you buy a property with a PITI close to or less than 45% of your monthly income.

This deal wont wait 30-45 days for me to have funds.

The appreciation adds an additional 4-5% in this zip code.

As far as a ROI...depends on what you are comfortable with...I think generally double digit returns attract the majority of investors die to banks  offering only 4-5, maybe even 6% if your lucky.

 $45 payment processing setup fee?

But listening to BiggerPockets podcasts and reading their books among others, my friend and I were confident enough to start taking action in a matter of 4-5 months which is really awesome.

Most counties are max about 45 minute drive into the city of Atlanta.