.- design details: flush baseboards with shadow line reveal, some interesting LED lighting, 4mm wear layer eng. hardwood, level 5 drywall, custom trim-less doorframes, pivot doors, and even one hidden door- I'm newb: this was our first remodel, so costs and schedule far from optimized but yea, process was hella fun.  

Getting back to the roof, a visual examination of a serpentine tube heat exchanger inside/serving one of the package rooftop units revealed what appeared to be the beginning of a small crack/breech in the heat exchanger.

This seller might be good but they might not point the phone towards the water mark on the ceiling or such that makes you want to have the roof inspected separately or reveals a plumbing issue you want repaired.Many trades are still working especially on vacant properties during covid-19Finally, follow David Greene's advice from a recent podcast where they are writing contingencies to allow for appraisal's and extra closing time depending on what future measures might restrict key points in your closing process.

A building inspection revealed major deferred maintenance.

., they never revealed a reason.

If the title and document inspection end up revealing certain things about the property that the seller failed to disclose or that I was provided the wrong info, am I able to back out of the deal?

Then when they reveal something a little personal, nudge them to give you more info. 

@Handel CarterA few possibilities come to mind, none of them great for you:1) complex owner wants to expand and having that piece of property will keep them within some sort of zoning rule2) complex owner wants to buy your properties and cheaply, and will begin a campaign of targeted actions to wear you down.3) slightly better: their survey (which u have every right to demand) revealed this issue and they are documenting it for any future contingencies.

Subsequent scoping of the main line (and multitudinous other testing) revealed 17 feet of standing water in the main sewer line underneath my property extending under the adjoining property.   

Proper disclosure may, or may not, require revealing that item specifically, it may be up to you to investigate after being given the proper contact/association info.....it varies.