If you pay back pay on someone's property taxes do you own it then

No you would have to get a deed from the owner or a tax foreclosure deed to become the owner.

Would there be no potential letters or notices from the federal/state government besides the IRS as long as I file & pay taxes?

The IRS is prohibited from sharing your tax info with other agencies so I would not expect filing returns to result in notices from any other agency.

What to do when you have an ITIN and you don't make that much money in US to fill out a tax return?

It depends on your income, marital filing status and exemptions. The IRS website can help you determine whether you have to file but if the ITIN is...

Yes this was improper and I would not go back to that preparer. You can report them to the IRS Office of Professional Responsibility

If I were to file bankruptcy would that include state car taxes?

Whether state taxes are discharge able is a bankruptcy law question and I am redirecting your inquiry to that group. Federal taxes have multiple...

Can the IRS seize a leased vehicle if you've paid a down payment, therefore showing equity in it?

Technically, yes but the cost-benefit ratio is so poor, they are unlikely to bother. Try to get an installment agreement or look Ito an OIC so...

Is ex required to provide 1040 every year?

If the modification order amended and superseded the earlier order without repeating the 1040 provision, he may not be in violation. Ask your...

What recourse do I have?

If he forged your signature on a joint return, the IRS website has a form for reporting identity theft but that may affect his ability to satusfy...

Can I sell my car that I owe car taxes on?

Ask Carmax - their business office will know. It doesn't sound like there's a lien yet. Yes, you'll still owe tax.

W-9 for 6 and 9 year old

No you do not have to provide a W9 or SS# but the bank will close the account if you don't.