A concern I have is that there aren't a lot of four bedroom homes in our neighborhood (ie are we pricing our home out of comparable range).

As far as the title question is concerned, absolutely! 

There is something called UBIT in a self directed IRA that you have to concern yourself with if you invest in real estate.If you are worried about the tax hit, you can always cash out a part and self direct the rest.Sorry about the loss of your father.Gino

I am still concerned that "they did not know what they were doing" and I may have future troubles should the need to file a claim ever come up.

My concern is if I move them the city wants to come in and do a elevation evaluation..Thanks in advance guys!

My landlord is interested in selling the property, and the prospective buyer wants to raise the rent to $1000 (which is fair market value), and my current landlord wants to know if I would agree to the rent-raise for the remainder of the lease, in order for the sale to complete.My landlord is concerned that the sale will not close if I don't agree to the rent raise; however, in the interest of fairness - I did sign the lease with the legitimate expectation of paying $800 per month for 6 months.

Are there any major questions and/or concerns I should bring up during our meeting? 

You need to be concerned with the lending in the state where you are investing.  

He is concerned that the mortgage liens were not properly notified although there is a court order to sell free from mortgage liens.

Linda is and for that reason really gets what I need to be concerned about.