All those details aren't really relevant to my question, just providing some colorful background....Anyways, has anyone wholesaled a portfolio of rentals before?

What matters more than the color of the ink, envelope, etc. is having a targeted list that is marketed to consistently with the right message.

The wacky homeless folks that hang around your block are interesting or colorful when you are a carefree 23 year old...

The self dealing aspect is what gives Real Estate agents a "bad image" ( I could have used more colorful language but out of respect did not).  

If they were permitted, you wouldn't have to post them in the dark of the night and use a phone number that can't be traced.  

Also paint that backwall something to compliment the sideing color.

I could get 2%, but its a part of town that you need the swat team to go into after dark.  

It's a calculated decision based on at what stage and condition the building is in.For retail if there are no demising walls yet and it's in a cold dark exterior shell condition the all in costs for putting in walls could be 35 to 40 per sq ft with plumbing and ceilings etc.If you have demising walls already could drop to 25 to 30 a sq ft.

I also like it because it gives you a preview of the article and you can invert the text color so it's easier on the eyes.

my suggestions would be to add a small porch and then as someone else suggested paint with contrasting trim, possibly dark red colored door.