And it's also much easier to accelerate if you're in a low priced area (or invest in one). 

I am seeing an acceleration of newbies enter RE, lending standards slipping again, lots of unsolicited purchase offers, and prices in my local markets making good investments much harder to find than they were just a year ago, all of which I take as early indicators that the cycle is soon to level out.

Finding the right lender can accelerate your investing career dramatically.

I want to accelerate the pay off and put any extra amount all towards one.

Given the fact that the note is at 4%, I don't have any plans to accelerate his payment or pay it off. 

I like your mindset on using leverage to accelerate your personal real estate ventures- that's exactly how I began flipping properties. 

I've just starting connecting with some agents locally, but would like to find some events to accelerate my networking. 

In this case OP says the lender just wants what is currently owed -- not the fully accelerated amount. 

Do you think it will accelerate the flow of americans to rentals in the long term by squeezing the already tight affordable house market?

Due to the time value of money accelerated payments increase your yield as an investor (but more on that in a future deal).Let’s talk Note Investing!