the tax value is 25k.

I've done a few tax pre-foreclosures before.

Monthly mortgage payment is roughly 6000 not including property tax.

The property is riddled with multiple liens and has 75,000 in back due property taxes.

Anyone on BP have experience with tax lien investing who can shed some light on this topic with respect to delinquent taxes in Oregon?

To acquire the property, the buyer will need only $702,000 in equity plus amounts sufficient to fund the seller' s replacement reserve, insurance and real estate tax escrows (such escrows are held by the lender for the borrower' s benefit).Would that mean you only need to come up with the $702,000 to purchase? 

What's the ARV, how much equity do they have, and how much are they behind on their note/taxes?

I have been preaprroved for a 650k loan, but will likely not get approved again when I file my taxes again in March.

Their profit would be taxed further reducing the flippers take home compensation. 

I've been analyzing deals for a year and have come to the conclusion that N.J. has most of it's potential cash-flow eaten away by taxes.