When a person passes away, their income for the year of death (2022 in this case) should be reported on their final Form 1040.

But if she holds on to the properties until death the heirs will still inherit at a stepped up basis - in other words any deferred tax goes away with her death.I'll reach out via pm and colleague request to give you more information

Regarding tax basis, is it more beneficial to gain full ownership upon her death from being a joint owner, or gain it through inheritance if she was the sole owner on the deed? 

Since the house is owned free and clear and has just been sitting there for 2 years since my uncle's death, my thought was that we would decide on a price let's say $625,000, I would pay for everything else and sell it.

It doesn't happen like a tenant, all at once, but it's death by a thousand paper cuts.

I know some may think you need to haggle someone to death, or get things on your terms, and hey, if you have the $$$ then as they say, "Cash is King."

Bank financing was facilitated but not finalized due to deaths of partners.

My family has made quite some renovations in our apartment and can help with the basics, like flooring, walls, and some plumbing, and we have the tolls for that, but for the roofing situation we need someone who knows their stuff.I still need to obtain the blueprint of the whole attic and then scheme it out and dive into the fine details.

explored that option but rates are really absurd, makes it a financial death wish.... 

Go to a construction site (production home builders--- Toll Brothers, Orleans, KHov) and find the carpet installer.