There are 8 or so siblings who stand to get an inheritance from the proceeds.

They probably all live far away, thus the reason the neighbor thinks there were no heirs, as no one ever came by the house to clean it out.I have never run into a situation where there are no heirs, as in the State of Oregon, law allows automatic transfer to partners/Spouses, then Kids, then parents and siblings.

I think they could transfer the deed into my name and my siblings names after it's paid off so we won't have to pay any taxes after they die.

It shouldn't be expensive to draw up, but you will want to be able to provide solid evidence of the deal to IRS auditors, estate attorneys, siblings, or any other interested parties in the future. 

Colorado Springs is still doable as far as Colorado goes; I have two siblings that live there and the area is still growing - but there's not much in the way of buildings, and nothing old-school like in Chicago as the Springs isn't a very old city.

A non-lineal family member like a cousin or sibling could use their IRA to partner with you in some fashion.If the transaction will be a flip, it will be best for the IRA party to be a lender. 

My two brothers and I will be inheriting close to 1m and and with them being younger (27 and 22) they want to invest this money since they don't have many uses for such a large sum of money now.  We are looking at inv...

My wife and her siblings discussed it, and currently her retirement income comfortably pays the taxes and utilities.

Good job in doing in finding driveway issue before closing.Personally I would like to get it resolved before closing, if the owners are siblings it will be easier for them to resolve it then it is for you, assuming they have a good relationship.Don’t assume after closing neighbor will do the same as w previous owner.

It may also be a sibling or offspring.The latter is my favorite target market: the child that lives at home during their adult life and ‘fails to launch.’