I took the time to call back the guy form the REO dept, thanked him for his time and professionalism, informed him I had secured the property properly and he need not worry that I left the property unsecure.

If there is a secured, or unsecured loan from where you got the cash, that will also have to be paid off within the loan before any additional cash is paid to you at closing. 

For outfitting the house I didn't have spare funds laying around so I found the credit cards that had the longest interest-free introductory offers, 18 months and 21 months, and I put all the furniture, etc. on unsecured interest free debt.

There are 2 FIFA Liens on the property, several unsecured claims, and the home is in foreclosure. 

Depending on your credit, income, and debt ratios, you might instead look at an unsecured line of credit. 

(LEH) filed for Chapter 11 bankruptcy Monday in New York, listing debts of $613 billion and naming as unsecured creditors owed hundreds of millions of dollars banks from Tokyo, Hong Kong, New York, Singapore and Taipei, among others.

You could look at an unsecured loan first of all from companies like Prosper and Lending Club, based on your credit score.

So this lien is unsecured from the property as a result of the foreclosure.  

So that makes it a little bit more complicated, because even if they put a mortgage on the first property you buy with their money, while you can always have them agree to discharge when you sell based on getting a mortgage on your next property, the problem is if you don't have a property right away to invest in when you sell the first one their loan becomes unsecured.

But, it could be that the lien was as a secured debt was extinguished through the FC and it would then become an unsecured debt.