Liens

Can someone else place a lien on a mortgaged house?
If a house is mortgaged with the mortgage company as lien holder. Can someone else put a lien on that house?
Can an HOA place a lien for unpaid fees?
Can a homeowner's association put a property lien on someone's property because a person is behind with their homeowner association fees?
What rights does a homeowner have against a contractor's mechanic's lien?
0000What are the homeowner's rights regarding a contractor mechanic's lien on new construction which has been filed with the county and served? If a homeowner made all payments for construction as work progressed, but refused payment of a final small sum for clearly disputed additional contractor's charges, what rights does the homeowner have and how should he proceed after receiving the lien?
Can a lien be placed on a home without the owner's knowledge?
When a lien is placed on a home, is the owner informed of this fact or can it be placed without his/her knowledge?
Can a lien be filed after 17 months for work on a single-family dwelling?
New York State Law: Article 2 Mechanic's Lien If Section 10 states that filing of notice of lien where improvement was made on a single family dwelling, be filed within four months after the completion of the contract...... Why is a contractor and his attorney sending me notice of filing a lien if the work (inadequate work) was done about 17 months ago (in Nov. 2005)? Hasn't the time expired?