LLC creation for out of state Investing

[Harshdeep Gupta]

First post here! I am a new out of state investor. 

I currently live in Seattle, WA and looking to buy rental properties in PA and IN.

My question is regarding as to what state should I setup my LLC? (I need LLC to get Hard money loans, plus legal protection)
I have been researching online, and was getting confused between double taxation, registering to do business in foreign state fees etc.

Do I need to make an LLC in IN to buy property there? What about PA?

What will a safe and cost-effective way to operate my business?

Should I open an LLC in WA (my home state)

Should I open an LLC in PA?

Should I open LLC in both states, make the WA one owner of PA one? Any other gotchas to look out for?