Can I put the mortgage interest as a deductible for my real estate property in Schedule E under other section.

Al,For a Flip, the usual coverage is a Builders Risk policy to cover the existing property and the additions/renovations. 

I've paid about 6k for new furnace and AC (pre existing ductwork in place).

Unless your expectations are for non-recourse (which doesn't generally exist in the context of your borrowing needs), lenders are going to be more concerned with you as the signer.

Always check an investor for an existing portfolio and financing in place, whether its a cash buyer check their bank statements, equity accounts, 401K etc.

I used CrossCountry Mortgage, which provided a premium rate of 5.5% for 30 years.

However, finding a single-family home (SFH) with existing tenants who are open to an owner moving in might be a bit challenging.

Often what I've found over the years is if a relationship exists with the owner and the tenants that they will express a lack of communication to the owner anytime something doesn't go their way.

My plan is to rent out two of the rooms to help cover my mortgage payments.So far, the property appraisal has been completed, and I've set up home insurance.

The tokenization of real world assets as used by people like Larry Fink and others is taking a digital representation of a SECURITY interest in an asset that currently exists, or will exist, and making those interests available for trade.