Adding details and specifics can help get to the answer or direction you're looking for.

Early on in my career, I saw a close frend do something similar.. she borrowed from her circle to finance a rural fixer-upper, then paid them back once she refinanced after the rehab.I’m guessing that massive yard plus the barn is already a big selling point for your tenant, especially with a family that wants a little extra room for animals.

Adding some social media marketing could also be a game-changer—targeting weekend tourists or traveling professionals with ads.You’re doing a lot right.

I added value by rehabbing both of the units inside the property What was the outcome?

I've owned and continue to own both, and there is no way someone can tell me with a straight face they spend less time getting a lender, giving them 80 documents, clarifying documents, talking to a seller, signing contracts, hiring a property manager (or managing yourself), bookkeeping, managing repairs, insurance and hoa setup, sending the lender more documents vs. vetting a sponsor and wiring money.I'm have very good luck with my rentals and I spend very little of my life on them, but that very little is STILL 5-10X what I spend on passive investments.One missed payment or eviction is added stress; you don't even hear about this as a passive investor.

You can use bat insulation or spray foam, which has the added benefit of giving you an air-tight seal and also keeps the bugs out. 

Maybe start with adding 1 more property instead of 3.

I spend extra for the the supply house versions and rarely have issues during warranty period.

I am looking to create a value ad to the property.

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!