I’ve heard David Green mention it in a podcast recently.  

It's like putting out a For Rent” sign in a quiet cul-de-sac and wondering where everyone is, right?

If they have an legally binding agreement, you need to honor that agreement and pay the fee.If you failed to mention to the agent that they are going to get paid, and then explained how, of course they won't present the offer.

How many people every year pour out there life savings to come for a vacation, just from TX, not even mentioning the US or rest of world. 

I merely made mention of some of the challenges I faced, but those challenges cannot be overstated either.

One place that will soon become a rental market heaven is an area around Johnstown/ New Albany where a huge Intel plant is under construction with plans for thousands of employees, not to mention the contractors there now. 

Out of the ones you mentioned I would invest in Bridgeville if the right deal presented. 

I'd love to check out the platforms you mentioned—feel free to DM me.

Is it ok to just mention previous work history? 

As others have mentioned, DSCR loans are generally for turnkey rentals (although outdated rentals may still qualify depending on the level of deferred maintenance).