yes he is legal owner of property
yes they are
You should consult with an attorney. Your sons are their father's next of kin and are entitled to any property he owned in his own name. Perhaps an attorney could encourage their uncle to allow the sons access to their father's property. You may want to file a petition for administration. An administrator would have the legal authority to collect the decedent's property. The lawyer could review your situation and help you decide what your next step should be.
Varies place to place. You can try "father not acknowledged".
You might divide father's property with sisters by selling the property and dividing the money equally between the siblings. You could also ask each sister what they would like to have from the father's property.
if my father's brother wants to share in our property what did my father do if he didn't want to give him any share becoz hedidn't spent any money on this property
Property handed down from father to child is an Estate and whatever is in that Estate such as monies; property or contents of the house; owning cars; boats, etc., is an inheritance to the child named in the father's Wills.
You are the new owner of the property and have every right as such under the law. Your father no longer owns the property and therefore he no longer has any rights in it.
This is dependent on whether it is voluntary or due to denial of access, as happens in 60% of the cases.
You can only deal with property that you yourself own.
If your father owns the house, and owns the property in question, then he likely has the right to keep said property. However, if the offspring is able to prove that they own the property in question, then the property should be relinquished to the offspring.
The grantee on the deed is the owner of the property. If your father set up the ownership of the land to be in his elder son's name that is prima facie evidence that he wanted him to be the owner. In fact, since the deed is in his son's name the father is not legally connected to the property. = =
This suggests that the father has some income from that property and therefore some ability to support the child[ren].