I understand the BRRRR method is not all that it used to be in the past years, but given that I have a lot of capital to play with, I figured that I would still be able to find ways to make it applicable.Does anybody have any suggestions/tips for me?

One has no mortgage, their other has a HELOC for around $20k remaining and is coming to its 10year term that was established before placing with LLC.My predicament is how/best way to pull equity out of either property for a down payment for the 3 family that is valued around $450k.

All told, cash flow will be a function of your down payment and your management of the property.FL tourism continues to flourish. 

Treat this property as a business and factor in all the associated expenses, including mortgage payments (if you pull a loan), maintenance, and potential vacancy periods.To simplify management and make this less of a hands-on job, I’d strongly recommend working with a property management company.

But why would that make them want to use this financing method?

This reduces your housing payment and helps you build equity. 

With $250k in cash, you can easily do down payments on 5-6 rental properties here. 

Some may be comfortable with 100% crypto transactions, while others could opt for a split between cryptocurrency and cash.For sellers unwilling to receive cryptocurrency directly, the digital asset will be converted to dollars to complete the transaction.There are many ways a buyer can use crypto to make a purchase:The simplest way is a Crypto to Crypto transaction, as long as the seller accepts cryptocurrencies as payment.

Does your mortgage include your property tax payments?

Risks: rates go down and you have to pay a prepay of 2 or 3 %; you have to sell and pay the prepay; rents decline & you can't make the payment like any other type of loan; cost upfront a little more than conventional; need to find experienced broker licensed in the state where subject property sits; servicers are bulldogs.