I would probably go with a HELOC as you won't have to pay for what you're not using unless you've got a specific property you're going to be buying with that money so you know you won't just take out the loan and sit on it paying interest all the while. 

This protects against potential claims and liabilities specific to the rental.For tax purposes, maintain clear records of rental-related income and expenses, allowing deductions for insurance, utilities, maintenance, and depreciation proportionate to the rental unit.

Added a bathroom and remodeled existing.Opened kitchen to diningNew roof, driveway, windows and mechanicalsRefreshed landscaping, hardwood floors and paintWhat was the outcome?

Pre '2010', maybe just maybe it will lean heavier on the fundamental mechanics than specific processes. 

New roof, interior & exterior paint, finished additional living space What was the outcome?

They might have insights on specific zip codes or pitfalls to avoid. https://www.biggerpockets.com/forums/521

Quote from @Joshua Janus: Cleveland, Ohio is a great market to focus on for cash flow and specific pockets have gone up 2x and upwards of 4x in the last 5-10 years even!

and if the client would prefer, for example, a specific plumber, that's fine as long as they meet our criteria, which 9 times out of 10 they do.  

I’ve been trying to learn a lot about Airbnb and want to get into that side specifically.

From the public website,The BetterLife Tribe program offers everything you need to achieve real estate success:Monthly Calls with Brandon Turner and top real estate experts, providing you with insider knowledge and strategies.1-on-1 Personalized Coaching to tailor a growth plan specific to your goals and challenges.Access to the reiOS System of Success, the exact operating system Brandon used to scale Open Door Capital to over $1B in assets.World-Class Real Estate Education and Tools that equip you with the skills to dominate any market.A Thriving Network of 1,000+ Active Investors ready to support, inspire, and challenge you on your journey.Seems like a great program like many do in the marketing materials