Also, I’m hearing from some sources at the casinos in Las Vegas that it’s pretty dead for this time of year, apart from foot traffic from conventions. 

(less than 7 days or there is usually something wrong.Marysville has the Tulalip Casino / Seattle Premium Outlets.

A new Hard Lock Casino will start operating later this year (or early next year,) the city is demolishing a lot of boarded up houses (but still have a lot to go,) price of the houses are going up for some areas and so on.

I am in Las Vegas Mid term rentals are a great option in this city as the legislation with AirBnB is ongoing and makes it difficult, plus competition with Casinos.

I’d look near casinos and hospitals.

I suggest looking there if the potential effect of the casino worries you. 

Durango Casino and Resort Grand Opening:Station Casinos' opulent Durango Casino and Resort opens in the southwest valley, boasting "affordable luxury."

They own the largest part of gaming in Macau and the Sands hotel and casino in Singapore. 

Mike can speak for himself, but from what I understand his situation is similar or more advanced.Strather gets OPM(Other People's Money), tax credits etc, engineers deals that sometimes do well(Motor City Casino) or others with so-so results(Woodbridge).

Last example I site is Springfield, MA, MGM Grand Casinos developed a nice property there but there has been no significant change in property value.