What happens when you have a lien?
Liens can be really scary, but the seriousness of the situation depends on the type of lien. Going back to the mortgage and car loans, those liens are generally not serious from a legal standpoint since you've voluntarily agreed to have the lien encumbering your property as long as you owe the debt. Once the debt is paid, you can go on your way with the title to your property.
In the case of a mortgage or car loan default, the lien protects the bank and helps them get back as much money as possible from your home if they reclaim the property and it's sold.
With other types of liens, depending on how much you owe and your state laws, your home or other property can be encumbered after the debt is incurred, so you can't borrow against it or sell it without satisfying the debt. In very extreme circumstances, it may be sold to satisfy the lien.
In these cases, it's best to negotiate with the lienholder for some kind of payment arrangement that will help you both get what you need. Selling property is always a strategy of last resort. If you can make a valiant effort at payment, you may well find yourself in a manageable situation.
Once the lien is paid, the person or company who is owed money can file to have it released. This generally happens fairly quickly. Always keep a copy of the lien release on file just in case it isn't properly cleared, or there's a question later.