Even IF (BIG if) their method can be successfully utilized, without the right knowledge/ education you won’t be able to utilize it profitably, at least not for the long run.

I have a pretty fair amount of equity in it I'd love to utilize. 

-Those utilities will be connected to the main residence unless you get new separate meters permitted and added.

It's common to see pre-payment penalties in this loan product and now lenders are less inclined to negotiate these pre-payment penalties down knowing rates are expected to continue to decrease which incentivizes the borrower to refinance.

Both 30 days and 60 days are common in traditional leases.In a 60-day notice example, most respectable landlords would communicate 70-80 days before the end of the lease and ask the tenant about their intentions to end or renew the lease.

An important consideration for a SFH is separation of utilities. 

This is the most common oversight by self-managers, but it's the one that could be financially catastrophic.

Things that are common in the U.S. are difficult in the islands, such as U.S. corporations and LLCs are considered foreign entities for tax purposes in the Territory which can cause problems and delays when you go to sell. 

Depending on your liquidity/vesting in these retirement accounts - utilizing these accounts can be a great way to purchase more property, you'll just want to be sure you're covering all the bases to keep you on track for retirement, emergency fund etc.If you have any more specific questions as it relates to financing i'd be happy to chat more in the DM's!

I use Rentec Direct for the basic property management/accounting, and Cozy for rent and utility payments.