It’s the path of least resistance when it comes to obtaining compensation for their clients (and themselves).

As an advisor who has written over a hundred IULs and own two myself, I can lead you to the correct way to structure these and show you what to avoid. 99% of agents aren't doing the best job for the client and this only makes their paycheck fatter.

I know clients that have done these line of credits, and a lot of times they end up paying a lot in interest + more paper work.

Median income in neighborhoods supports current prices with median housing price in the 2.5-3x median income. 

They do get paid well but I have found I make more from other clients than I would from traveling nurses.

Clients are reporting great success with mid term rentals catering to traveling health care professionals at Albany Med.

When I've had clients struggling to find properties, we create a new game plan an execute.For example, dysfunctional floorplans take out most of the buyers, even though some can be fixed. 

I've searched all over for this on behalf of clients and can't find < $75k either.

You can certainly learn through free resources and online forums like this but a mentor can help cut thru the noise, provide clarity specific to your goals, and provide support to achieving them without the trial and error. 

Most of my STR clients aren't from Colorado.