Right now, you have a property with a great equity position, solid cash flow, and cheap debt (interest rate is low). 

The property, though is not beach front, nor does it has ocean view, is just a short drive from some of the best beaches in the west, which are great for surfing, snorkeling, SCUBA diving.In the 1.21 acres there is a main single family home (4 br) which was divided in two sections one of which is being rented.

Check with your municipality about how property taxes will change when you buy the place.

Quote from @Avani Patel: Hello, it is really time consuming for me to analyze each property by manually entering its data to calculate the return. 

Just because the property can close in an LLC with a DSCR loan, does not mean the loan is made to an entity.

I would also purchase the property and not the LLC unless you are a seasoned investor with a good attorney.

I have two 4-unit properties in RI. 

You do not need separate checking accounts for each property if the ownership is the same.

Or local to the property?

You won't open a "business" account unless your property is held within an entity.