Research these 3 issues and write a letter to dr. ruiz with your conclusions research these issues and write a letter to dr. ruiz with your conclusions. in your letter, you should explain the rules base on the research site, determining an individual’s residency for tax purposes. use footnotes or endnotes for primary cite source (ex. §1.421-1(b)(1)) facts: dr. pablo ruiz, a mexican citizen and new professor at the university of texas , moved from mexico to the united states with his 6-year-old son on january 1, 2015. he is currently residing in the united states on a j-1 visa, and he and his son have not lived in the united states in any previous years. his son has a j-2 visa, but, unlike dr. ruiz, he does not have a social security card or a taxpayer identification number. ruiz is not married, and he fully supports his son who has lived with him the entire year. issues: professor ruiz has asked you:

1) whether he should file his 2015 tax return as a resident or nonresident alien.

2) he is also not sure about his filing status

3) whether he can claim his son on his tax return. make sure to cite primary sources and not the database commentaries please use the cch site,

http://intelliconnect.cch.com