It takes a while to create the postcard (and I will be sending a different one on each follow up), but it really doesn't need to take that long, and you get quicker with each subsequent design.  

You need to move on.Another thing I tell applicants, once they’re approved, is that I’m going to continue accepting applications and screening for tenants until I have a signed lease and all money that is owed (first months rent + deposit) is paid.That motivates them to do those things quicker so you don’t run into these situations where you approve someone and then they just string you along while they (likely) keep looking for another place they like better and you have nothing legally binding holding them to your place. 

Because if you can put down 20-25% on this purchase that will leave you that much cash for the next allowing you to scale quicker. 

Quicker I can get in and out, the less risky it is! 

You can use the third party financing addendum if you would like but i would suggest making sure that the seller understands that you can close quicker than normal loans. 

On another front we MAY have finally found a lender and setup that will allow us to continue to endlessly refinance properties to build the portfolio quicker.

Option D doesn't really seem to get you to the goal you are aiming for, purchasing as many properties as you can, as quickly as possible. 200$/mo in extra cash flow will help pay down the mortgage quicker, but what would be your end goal in doing so?

Then I discovered by having these frank conversations and laying out my expectations and goals, I either was brought back to reality, or that things moved quicker and better.Good Luck!

I am really excited about going outside my local market as I think it will allow me to grow my portfolio quicker but with that excitement comes a lot more skepticism. 

The quicker you can make an offer the better.