It's not just the porosity and sealing issues, well-chosen granite is not nearly as vulnerable to that as some of the trendier lighter more open grained granites that people felt compelled to use by their designers. 

That this is an inconvenience rather than a life threatening situation, it’s a big inconvenience at a really bad time and a vulnerable point for them.

It shouldn't take months to get caught back up on rent or else you are being vulnerable. 

I know people worry that folks in low income housing will trash your place, may not pay rent on-time and cause you trouble but it’s a chance you take or have your place vacant and vulnerable.

This could be as simple as rioting and looting destroying local neighborhoods and no recourse from the government (almost like they are supporting and inflaming it) enforcing rule of law and order. 

Would we still be vulnerable at that point, even if the property is in an LLC?

@Jonathan Twombly  from my vantage point.. those with massive debt tolerance or the refi to you die or the I have to have max debt to show the best return numbers for my investors.. so they lock into short term 5 year notes.. those are the one's who are vulnerable in a correction. 

Failure to take these measures will leave you vulnerable to a plaintiff’s attorney interested in piercing the corporate veil.

Once you have lost your leverage, you become vulnerable which can make or break a deal.

No real gain and simply allows people who are already financially vulnerable to overspend and dig themselves deeper into a hole.