Is there a no win / no fee type of service I should be searching for?   

Maybe with automatic payment stuff and you can request changes to your credit card due dates, you can take as much advantage of the float. 

I see 3 days ago a charge for a whopping $390 was charged from BiggerPockets to my card.

If you plan on leaving after a year, rates will be much higher to refinance this as an investment home so doing the buy down probably wins out in that situation.

Here's why I waited:Visa Uncertainty: With a temporary visa like an F1 CPT or even an H1B, there’s always a chance that, due to lottery outcomes or policy changes, the path to a green card could be delayed or not happen at all.

It sounds like a big win.

A lot of time you won't, therefore you also have to evaluate your marketing/sales strategy to partner yourself up with the right property owners that everyone wins in the end. 

BK is a WILD CARD.  

Someone else may say its free money and let it ride, so invest it in something super high risk and high reward and if I win they I win but if I lose it all I lose it all. 

I know that a ton of people will win with the approach you are contemplating taking - in taking a HELOC out for the down payment on an investment property.