Northern California is especially bad right now because of all the fire rebuilds. I’m hearing about a lot of nightmare stories with fraudulent contractors coming in from out of the area, in some cases from several states away.
The unfortunate truth is that this is extremely common post-disaster. I used to volunteer with a disaster response organization, and we were often the first group of folks allowed in after the legitimate first responders. Most of the time, we were allowed in well before property owners even were. Living in California, that obviously meant lots of fires. The entire situation following major disasters is challenging on every level. Scumbag contractors flood in to the area and do shoddy, often outright dangerous work. This is
especially bad when insurance or FEMA are footing repair bills, because there's practically zero oversight. After Hurricane Harvey, we wound up running some non-local contractors out of town who were simply screwing a fresh layer of sheetrock over top of flooded, moldy sheetrock and calling it good. After the Tubbs Fire, there were contractors running around offering to clean up lots so the owners could rebuild for a "cool twenty grand." Something we were doing for free. I never came across anyone who actually paid (or even could have afforded to) for this service, but we'd spend a day or two carefully clearing someone's property, being mindful to save anything that survived (you'd be amazed at some of the oddball things that survive - a pickup truck is burned to a pile of ash and brake drums, but a 30 year old family photo survives intact ten feet away) and return it to the owners. The next day we'd start on the next property, and there's a banner for a scumbag contractor in the front yard of the property we cleared out the day before, advertising their services.
You get businesses who show up and dump literal tons of building supplies next to roads and just drive away. Call it a "donation" and write it off on taxes, but in reality it just becomes a burden to the locals who were never contacted and have no plan for its use, and are often times weeks of work from being in a position to utilize it. All the while, you've got bunks of sheetrock weathering outdoors, so by the time anyone actually can put it to use, it's just more weathered garbage that needs to be disposed of - at the expense and labor of the locals who lost everything. Even if the intent was good, the execution genuinely makes the situation worse for the people most impacted.
It's sad to see how many scumbags appear and attempt to exploit these situations. The really difficult thing is seeing the folks who are eager to help and genuinely mean well doing things in an uninformed or misguided way, and adding more stress than they help to alleviate.