Depending on how it is done and what guarantees the government offers and requires of the released entities, interest rates could move slightly higher.

With insurance companies canceling policies and raising rates has anyone uncovered a way to self insure rental properties?  

Sometimes they’ve already negotiated solid group rates.

If someone offered to finance this house to you at your current rates if you put down $250k would you do it?

Head over to bank rate or and take a look at the mortgage calculators, plug in the numbers and get an idea of what the property needs to generate to satisfy the intended debt.You still have to underwrite the deal for the non-finance expenses as well(typically 40-50% of the gross rents). 

Please update us with what rates you end up getting quoted.

If you pay cash for something and are able to refinance at a rate that makes sense to pay off your HELOC, that's the only thing I could see making some sense. 

The advantage with the bank was minimal closing costs, a good interest rate, and a draw system so I could get funding as I completed each rental unit. 

Is it high appreciation area with a low rate mortgage?

If you're willing and able, I do recommend the "house hacking" strategy which is just a fancy name for buying a rental property and living in one of the units, because you'll get very favorable financing - an owner-occupied fixed-rate 30-year mortgage.I'd also say, analyze that property as if you won't live there and it's a pure rental, and make sure the property is still cash flow positive if there's a tenant in your unit because then you'll know if it's actually a good investment.And when you analyze it, include payment of a property manager in your #s because if you don't, and doing so would make it go cash flow negative, then you've just bought yourself a job because you literally can't step away from managing it without losing money.