You could then release your lien for nominal or no consideration, thereby eliminating the 1st's issue with payment to the 2nd in the short sale.

Ok going to make sure I'm asking about any special considerations for the upkeep of the property 

Consideration for the property is $1.House is valued at 47k about 3 years ago.

The sellers are motivated as they are moving and have dropped the price considerably in the last month.

@Jason Powers If you have just 30% equity in your present duplex, you may find you cannot draw out any of it.  

So that is when we had to come up with the drawing board.  

This period is different for each investor who purchases the mortgage on the secondary market.I always make a disclosure to the borrower they cannot pay it off in under 6 months but technically there is no contract that says you cannot its just more of a consideration move.If the lender spent a lot of time with you and they get "charged back," they probably arent willing to be as helpful next time....

So be prepared to compensate an agent when figuring how much option consideration is needed.  3% + 3% is too much for me.I've never entertained active MLS listings as lead potential for LOs, but good to be thinking outside the box @Nghi Le.  

A main consideration for not spilling the beans is that such information can be gathered to fabricate cons.

Seeing as how it will be my primary residence, will a bank give a standard loan taking into consideration rent from the other units?