Are all 4 units metered for gas and electric separately or on master meter? 

@Sergio P Ramos, what about moving the house to a corner of the lot and subdividing off a small parcel for this home and selling it separately of the rest of the land.

In most states there is protection in your primary home through the homestead exemption, your investment properties must be in a separate entity.  

Are there separate gas, electric and water meters for each apartment?

This is NOT Business Credit.By establishing a separate corporate credit profile on the EIN Number (separate from the business owner's SSN/FICO), investors can access substantial business credit lines, capital for property acquisitions, and renovation funds without personally guaranteeing the debt.This approach creates a powerful financial firewall between personal and business assets while potentially generating a significantly larger (ROI) through reduced interest rates, increased borrowing capacity, and the ability to scale investments more rapidly.The education gap surrounding EIN corporate credit means savvy investors who understand and implement this strategy can gain a significant competitive advantage.

My thought Scott since BP is basically the gold standard with their training courses and we know how popular wholesaling is for beginners and BP having a lot of those starting their journey when you have your training events and such you separate BP from on line Guru's that will just tell you wholesaling with no rules is legal in all states.. which its clearly not.

The tenants are currently in court with a title dispute so the house would have to be paid for cash only.I would like to convert it to a primary residence and turn the garden level into a separate two bedroom apartment for use as an in law suite.

The sale of the business would be separate. 

I use a separate email dedicated for mortgage business and a PO Box for all investment business mail that I check weekly.

Inspections--house, termite, possibly separate roof and structural8.