No problem right.So what do you do when you find out the borrower is in prison and the 17 year old daughter who is a junior in high school is living in the property and she is trying to find a place to live with a friend and needs an extra 3 weeks.

Most students have signed a lease for their junior year before they've moved out of the dorms Freshman year. 

But if he has a bunch of junior liens or judgements etc  then you have to run the foreclosures to clear those from title. 

Hi all - my name is Mac and I'm currently a junior at the University of Texas at Austin studying finance.

But if it’s a fixture filing recorded among the land records, then that junior lien may be extinguished in a properly-conducted foreclosure. 

(a) Anyone entitled and desiring to redeem real estate under the provisions of this article must also pay or tender to the purchaser or his or her transferee the purchase price paid at the sale, with interest at the rate allowed to be charged on money judgments as set forth in Section 8-8-10 (as it is now or hereinafter may be amended), and all other lawful charges, also with interest as aforesaid; lawful charges are the following:(1) Permanent improvements as prescribed herein.(2) Taxes paid or assessed.(3) All insurance premiums paid or owed by the purchaser.(4) Any other valid lien or encumbrance paid or owned by such purchaser or his or her transferee or if the redeeming party is a judgment creditor or junior mortgagee or any transferee thereof, then all recorded judgments, recorded mortgages and recorded liens having a higher priority in existence at the time of sale which are revived under Section 6-5-248(c).If the redemption is made from a person who at the time of redemption owned the debt for which the property was sold, the redemptioner must also pay any balance due on the debt, with interest as aforesaid thereon to date.(5) Mortgagees of the purchaser, or their transferees, are considered transferees of the purchaser, and a party redeeming must pay all mortgages made by the purchaser or his or her transferee on the land to the extent of the purchase price.If the purchaser's mortgages do not exceed the amount of the purchase price, the balance must be paid to the purchaser.

Once we hit junior year and started leaving the dorms, we had established ourselves well enough in our college town that we weren't going home for the whole summer anyways.

Tax sales just wipe out junior encumbrances, they do not guarantee clean title.  

Does the 1st mortgage prohibit junior financing.

I think that, regardless of the deal you have with the seller, the primary lender that you refinance with may not like you having a 0% equity stake in the property, or very tiny equity position of less than 25%, and may require you to reduce or eliminate the "junior lien" or whatever you want to call it that is this seller carry item.