This is the perfect question as to why it makes sense to sit down with a lawyer to assist you in setting this up the right way for your circumstances.

Do I need a real-estate lawyer or a regular lawyer, in case I need to defend myself in court?

You may want to go back to your bankruptcy lawyer to see if the amount due would be discharged. There may also be language in the purhae agreement...

Realty trusts were historically used to keep he beneficiaries or true owners of the property private. They may have some probate avoidance benefits...

Do I need to file tax papers?

No income tax return if you have no income. But you may have to file if you have a foreign bank account.

My mother just passed and left her estate to me, my aunt is claiming she gets a 1/3 of the proceeds if I sell can this be?

This is to complicated of a question to answer here. You need to take the paperwork to a lawyer and have your mom's estate probated to make sure...

What happens when you stop making your payment on a second mortgage?

The second mortgage holder can foreclose on the property. Their interest would be secondary to the first mortgage.

Tax receipt for donation to US non-profit from Canada

You are asking questions about Canadian tax laws, not the US tax laws. You will need to consult with someone in Canada on this issue.

My question is about the federal work opportunity tax credit. Is there a similar tax credit at the local level for the District?

This is going to be best answered by a local CPA.

Income tax exemption for capital gain asset

Given you were in active military and stationed oversees you may qualify for certain exemptions for having to live in the house for 2 of the...

Georgia state tax lien

As you point out you need to consult with a local attorney. But if the lien is set to expire as pointed out in the previous answer let it expire...