If you are simply looking for a lender to be a junior lien holder, they will likely require you to pledge more collateral. 

I'm 20 years old and in my junior year of college.

I am in a junior position that will have me become an MLO in the next month or so.

7,500 is a junior box size mini-anchor.

anything junior to your position?  

I'd rather sell it to an investor who is looking for lease property as the family likes the house and has one kid in junior high and another in high school.  

I'm currently a Junior Mechanical Engineering major at UT - Arlington.

Are there any junior liens?

If they're open to working with you, you would start the process of the short sale with the lender.Worst case if the first lien holder won't short sale it then you can gain possession of the property by having the homeowner deed the property over to you or you can foreclose on your second lien (foreclosing at least wipes out any junior liens).

I'm a (very junior) C-17 pilot at McChord AFB in Washington, and while I'm active duty there are three reserve squadrons here that, if you interviewed with them and got accepted, you could live in Tacoma, still do RE investing, and do flight school for free.