Also, as long as you didn't prevent the buyer from doing inspections before you closed you should be good.  

Sounds like with the city opening up she has no legal grounds to prevent you from entering the property. 

Cast iron sewer services with city trees that you cant cut down and the roots keep growing into it. 

It would be different if the furnace was newer or there was a severe hardship preventing it from being changed. 

However, during the inspections, many hidden issues were revealed: structural issues found in the crawlspace, sink drainage issue due to debris and tree roots, mold in the attic, cable feeds with exposed wires, dips in roof, torn roof vent boot, front porch needs shimming, and a handful of other minor issues.

@David J Virga,Hey, I am rooting for you! 

Here is a link.https://www.fanniemae.com/portal/media/corporate-news/2020/covid-payment-deferral-7018.htmlThis way you prevented the seller from completely losing everything and you just got a good deal on the property while being protected.

Or is it just a good preventative maintenance step?

He suggested doing it all in one day to prevent them from seeing it on my record. 

It is free and it prevents someone from using your social security number without detailed verification efforts.