I don't recommend Seattle due to the very anti-landlord climate as well as various other reasons. 

First try installing one of the anti-allergen air filters, see if that works before spending a bunch of money.

Like you said, maybe it is time to move out of Buffalo.Some years back there were anti-flipping rules that said you have to own the house for at least 3 months before you sell.

Additionally the anti-government grouping, which has arisen just eat of Las Vegas, in the last few years; it has set up efforts to gain Idaho people, as followers of this movement, with said leaders are now based in satelite towns, near to Boise.

It essentially works as an anti-flip tax. 

That said, voters could finally get tired of the current city leadership and replace all of them with people who are not anti-business. 

@Christopher SmithAgree.While I’m not anti-LLC, there hasn’t been a single story of somebody who operated their LLC that successfully fended off a lawsuit.Meanwhile, series LLC’s are so new there really isn’t much legal precedence...

Governments (and residents) across the state are extremely anti-development, artificially limiting the supply of housing, keeping prices the highest in the country, and preventing anyone but the wealthy from buying a home.

Reason being is because the investment environment is too anti-business and anti-capital.

As is mentioned above IL is overtly tenant friendly and anti-landlord really.