I contacted a tax professional that I found on this forum prior to this post but thought I would solicit additional comments and experience. If by "look up the rules posted on this site" you mean the standard look for your answer prior to posting a question, I did that as well but didnt find anything that anwered my questions well enough.
Jiggie
Many people have debated per diem on this site and have posted alot of the rules.Beercourt is giving you the truth.Search what Beercourt has said many times before.Camella posted this.
Here is what the IRS says....
Temporary vs. Indefinite Travel Assignments
Reimbursements of travel expenses for "temporary" assignments away from the tax home are generally not taxable to the employee. If the assignment is "indefinite," the employee is considered to have moved his/her tax home to the new work location. Reimbursements of expenses for "indefinite" travel are taxable. The employer must determine whether an assignment is realistically expected to last less than one year when the assignment begins. .
Rev. Rul. 93-86; Rev. Rul. 99-7
An assignment is generally considered temporary if it is realistically expected to be, and does in fact lasts, one year or less.
An assignment is generally considered indefinite if it is realistically expected to last, and does in fact last, for more than one year.
These rules apply unless the facts and circumstances of the case clearly indicate otherwise. All relevant facts must be considered to determine whether the travel assignment was intended to be temporary or indefinite. Rev. Rul. 93-86; Rev. Rul. 93-7
Temporary" Travel Assignment Becomes "Indefinite"
If an assignment away from home at a single location is, initially, realistically expected to last one year or less, and then later it is realistically expected to last longer than one year, the assignment is considered temporary until the date the expectations change. At that time, the travel is considered "indefinite" and any travel reimbursements from this date on are taxable.
(retrieved March 16 2010 from
http://www.irs.gov/pub/irs-tege/fringe_benefit_fslg.pdf)
I'm not trying to steer you wrong or be a smart a**.Don't go into this blind and end up in trouble.