Pretty much zero danger to any person.

Or given it's rustic-ness, would it be too dangerous and put us at risk of being sued?

Not make unauthorized alterations, climb ladder/roofs, paint/wallpaper, change fixtures, install flag poles, or run dangerous equipment.

We hope to get to a point where we're experiencing fewer errors, and we're not needing to double/triple check things as much.

Many of them are newer which means you have fewer that struggle with the issues of just being worn out.

But I also feel like there are fewer D-class neighborhoods that would make it incredibly difficult to manage a property and make a profit.Mike

Arguably the entire act of "giving" things to people instead of making them "earn" things is dangerous.

A house built before 1970 may require new wiring.Some people always replace a roof while others go case by case.We make it a rule to change out windows on houses over 20 years of age for energy efficiency reasons.My point about location is this: in Austin a carpenter may get charged out at $30/mh while in San Francisco a carpenter gets charged at $60/mh.Really, it is very dangerous to try to price renovations with average prices or square foot prices.  

Re-glazing they use a very hazardous product that is required to use a mask as well as ventilation so it's very dangerous to use even though they will tell you it's not.

Reminder, this is also the state that doesn't allow you to pump your own gas because "it's dangerous."