If you need more coverage, you can usually increase the liability amount on your current policy.

Market AnalysisDemand: Red River Gorge has seen a significant increase in vacation rental demand. 

With owner financing, depending on terms offered, we can increase that number by 10 - 20%.  

Right now, we’re seeing a slight increase in inventory and some corrections in rents, which could create opportunities—but achieving solid cash flow on a condo can still be challenging.Getting pre-approved is a great first step to narrow down your options and focus on locations that make sense for your goals.

Not only would the rent cover your heloc costs (eventually) your property value increases giving you the equity you options for additional real estate investments down the road. 

It's what I pay my overseas VAs with for my business.They did just increase their fees slightly, but it's still the best option IMO.

To increase cash flow.

The quicker cash flow may allow you to scale quicker if that is what you want while the better appreciation could increase your net worth more over time.

The instructor gave a case study where we needed to team up as groups of fours and figure out a way to buy an REO property with no money of our own and increase the equity by 30K.

I think it really depends on if you are able to increase that cap rate with value-adds post acquisition.