Here are some pictures of the mold and the browning edges.

You mention "black mold" in Los Angeles area & they rip your house apart. I saw the mess they made of Erin Brockenvitch(or whatever her name was(Julia Roberts played her in movie about different problem) anyway several houses in area of her house got tore to shreds. Well, they were fairly close to ocean so you naturally get lot more mold growing. Most houses have some mold, just take a Qtip & put it in your sink drain in bathroom, run it around & in most cases it will be black!! I have allergies so I have narrow brush that is on end of 6 ft cable so I can scrub it out, I use Comet & rinse well & then hydrogen peroxide& forget about it until next time I clean it. A lot of times the "black" or dark spots in attic is from moisture getting in before the new roof was put on(reason they put new roof on!

I do have allergies to mold and mildew. I also had fibromyalgia diagnosed some years ago -- having nothing to do with mold or mildew. I still say that most of the issues were hyped and sometimes severely hyped. That doesn't mean that no one had or has legitimate health issues, but it does mean that a form of hyesteria developed. I also suspect that anyone with fibromyalgia, CFS, Lyme Disease or MCS has issues other than mold and/or mildew to be concerned about -- even if those problems are or may be made worse by excessive exposure to mold and mildew. And I say excessive because you cannot live along the Gulf Coast and not be exposed to molds and mildew most of the year -- indoors or outdoors. You can control them by not giving them places to flourish in or around your home, by watching for any water issues and by promptly fixing them. I'm not attacking anyone or their experiences -- I just know what I saw in near hysteria here in the Gulf Coast, both among home owners, then insurance companies, then the real estate market. I saw people with no problems who couldn't sell their home. We were told that because of a hail storm and a roof claim, we would not be able to replace the coverage on our home -- and we could have had an issue selling it if the person buying it had a problem getting insurance. We didn't even have to have a leak-- we had fixed the roof so we wouldn't have a leak. We avoided the problem by renting for a year (takind a different kind of property damage) and then selling. And that's with my BIL as my insurance agent and the company one my dad had been a major agent for since I was a child. I saw people who did have problems who couldn't get them resolved for years. I saw several neighbors replace bathrooms and or kitchens -- full upgrades, because they had ignored a water leak and filed a claim. They made no bones about the fact that they wouldn't have done it expect that insurance was paying for it. And so many other problems. I am also certain that if the problems were as severe as some hyped them to be, there wouldn't be a healthy person within 100 miles for at least half of the summers. We have mold and mildew spores in the air all the time and moisture makes them come to life and grow. And we get plenty of that. Life in the subtropics. Sandy, real estate and insurance issues vary from state to state. I would suggest she talk to the realtor -- they should know if there are insurance and issues regarding slaes of homes that have had mold remediation. It took and insurance and housing crisis here to force regulatory and legislative changes about 4 or 5 years ago. I just had my policy renewed, so I have the documents here, and they specifically state that any mold remediation is limited to $5000 (where before, people were spending $500,000 to make repairs on a $200,000 house -- they would also list as a claim a phone call asking about a damage issue even though no payment or request for payment ever occurred). It also states that you cannot be denied coverage for mold or water damage claims unless certain criteria are met or not met. That being the case, certifying that corrective work was done and done properly and having thorough inspections before buying should address the concerns. I can understand that your daughter would not want to call and ask her insurance agent for fear of creating the very situation she wants to avoid, but I would also not take only the word of those doing the work. They may be 100% correct and accurate -- they may also have issues they want to hide and don't want anyone tipping her off. Maybe there are still places that are as crazy as it was here -- I just wouldn't take their word alone for it.

I think I inspired this thread. I told risforremodel in another thread that I am rethinking an undermount sink after staying a couple of hotels with them. I do my hair in front of the sink. Hair gets in the sink. I wipe it out with my fingers to prevent drain clogs. In both hotels, they had a negative reveal, and my fingers would catch on the unfinished underside of the counter. I found it thoroughly disgusting. I have never seen a sink or counter with a perfectly sharp, square edge. There is always a slight rounding to it. So even if your sink and counter are perfectly lined up with no reveal, there's going to be a gap. I guess you could fill it with chalk ;) but I suspect I'd find that just as unnerving. I much prefer my 1980s cultured marble integrated sink.