Need to find out if they are seperated or divorced, if any on them signed their name off the deed at one point, or one possessed a Power of Attorney over them at any time and that is why only one came up.

I want to protect myself for obvious reasons should a marriage ever come to that, but how does that work and how could I be sure that a house I buy would be 100% my possession?

Can I have a contract with a seller that is not legally in possession of the property?

you can get force placed insurance for a short time until you get possession.

The bank has holding costs, admin, insurance, weatherization, mowing and property management over the term from their taking possession, which could be before a sale if the property was abandoned as they have the right to protect the collateral. 

@Chris Seveney I assume once you take possession of the property and have real property, then the valuation would change.  

Anyone smart enough to profitable flip a house and who is willing to spend the time,  is in control of their emotions and is in possession of adequate data, can price and negotiate their own real estate sale...on the sell side using the MLS via flat fee or discount, etc.  

Or, it could mean that we reach an agreement that allows the tenants to leave if they promise to pay the overdue rent in six month’s time.Remember this isn’t personal – It’s business.The ultimate goal of these negotiations is to gain possession of the landlord so we can get it re-rented.

.), so I just want to have $1M in my possession by then, cash or net worth. 

You offer the occupant a payment (typically no more than 1% of the value of the house but it's up to you and what the occupant will take) in exchange for him to voluntarily give up possession of the property.