We put a sign on every property to: attract tenants, create brand awareness, and to help prevent scammers from using our properties as bait. 

The thought is creating passive flowing income now so I can be work optional in about 6 years or so.

Your PM will create new challenges for you that you will have to face. 

And now they have changed their policy so the host has to ask the guest with bad behavior for the payout of damages.

I think if anyone chose to focus on inbound crews and create parking like you said, as well as crew amenities (large dining areas, etc), they would be booked year-round and in-demand.

You have used home equity lines of credit to purchase investment rentals and want to know the best way to pay down the HELOCs.Between the two properties you bought, after expenses, you have $250 a month positive cashflow to use.What I like to do is pay down some principal every month with my positive cashflow.I use my extra active income from real estate commissions helping other investors to pay down the principal even more which just frees up that credit for me to use again.I know I can refinance the HELOC debt before it changes to principal and interest as it is just interest only payments as yours are.One difference is the cashflow, I have greater positive cashflow and could make the principal and interest payment in the future with the extra cashflow I already enjoy.I always get HELOCs on my income properties as well after purchasing them to pull out as much of my downpayment as possible.

I’m aware that thousands of notes with their corresponding Mortgages/DOT’s are packaged up and as a whole create an MBS (mortgage backed security).

After that, I changed PMs' and a year later, still not sure if I'm safe from "cash grabs." 

Did you change strategies on one of your properties?

If I ended up getting only the gas furnace, it was going to be 10k but both the gas furnace and AC were 18+yrs old and at the end of their life cycle.