In this situation, I see a lot of investors overpay for a less than ideal asset to beat the taxation deadline.

Just make sure they are familiar with real estate taxation + the state laws where you live and invest in.

Although some appraisers work directly for mortgage lenders, most are independent.appreciationThe increase in the value of a property due to changes in market conditions, inflation, or other causes.assessed valueThe valuation placed on property by a public tax assessor for purposes of taxation.assessmentThe placing of a value on property for the purpose of taxation.assessorA public official who establishes the value of a property for taxation purposes.assetItems of value owned by an individual.

With this info they could also easily identify all illegal rentals and smack them with fines too.HONOLULU (AP) — Hawaii is seeking to find vacation rental owners who aren’t paying taxes by getting Airbnb to turn over rental records.Hawaii News Now reports the state Department of Taxation filed a court petition last week to serve an administrative subpoena on Airbnb for rental documents dating back to 2008.The department is investigating vacation rental owners’ compliance with the general excise and transient accommodation taxes.State Director of Taxation Linda Takayama says the department’s goal is to get the taxes paid, which could involve penalties and interest fees if owners haven’t been paying.Airbnb in a statement said it has received the request and is reviewing it.

And, there is a double taxation under C-corp. 

I highly recommend you consult with a knowledgeable CPA in the area of international/cross-border taxation especially as it pertains to estate taxes.You are correct - a nonresident alien is generally subject to an estate tax on their U.S. situs assets of 40% on the excess of $60,000.

@Zachary LitwinSelf-directed IRA is still an IRA, all of the rules concerning contributions, distributions, taxation, etc. are the same.

I was successful reducing the tax by a couple thousand dollars on one property a few years ago doing it DIY, but my comps for another were bad and got nothing.https://www.state.nj.us/treasury/taxation/pdf/lpt/ptappeal.pdf

You should be speaking to an attorney.From a taxation point of view, an LLC does nothing for you. 

My concern is taxation.