What is the biblical basis for those in heaven being able to pray for the living? Some Christian doctrine suggests that our work as Christ's servants does not end with our physical passing from this life; that we can continue to pray for those in need in heaven. Catholicism comes to mind but some Protestant denominations seem to leave wiggle room with their teaching on the communion of saints as well. I sense truth in this but could find no direct support in the bible. I do see support for this in the contested book of the Apocrypha and the practices of the Jewish Chasidic and Chareidi sects.   

I am not asking if there is biblical authority to support the practice of the living praying to dead saints for intercession. That one has been thoroughly probed.  Rather, my question is if there is biblical authority to support the proposition that when we are in heaven, in the presence of God, we can pray for the living.   

In searching this site, I found the following pertinent references. I would also ask for comment on how these references relate to the question posed.

Then the LORD said to me, "Though Moses and Samuel stood before me, yet my heart would not turn toward this people. Send them out of my sight, and let them go! (Jer. 15:1)

And so, when you and your daughter-in-law Sarah prayed, I brought a reminder of your prayer before the Holy One; and when you buried the dead, I was likewise present with you. (Tobit 12:12)

And when he had taken the scroll, the four living creatures and the twenty-four elders fell down before the Lamb, each holding a harp, and with golden bowls full of incense, which are the prayers of the saints; (Rev. 5:8)
You already mentioned that you had seen support for this in the Apocrypha (otherwise known as the Deuterocannonical text).  As such, it became a Tradition to ask the Saints for intercessory prayers, because of the belief that they can in fact pray for us.
And on top of that...

my question is if there is biblical authority to support the
proposition that when we are in heaven, in the presence of God, we can
pray for the living.

In Luke 16 we read of the exchange between two men who had passed away:

There was a certain rich man, which was clothed in purple and fine linen, and fared sumptuously every day: And there was a certain beggar named Lazarus, which was laid at his gate, full of sores, And desiring to be fed with the crumbs which fell from the rich man's table: moreover the dogs came and licked his sores.  And it came to pass, that the beggar died, and was carried by the angels into Abraham's bosom: the rich man also died, and was buried; And in hell he lift up his eyes, being in torments, and seeth Abraham afar off, and Lazarus in his bosom. And he cried and said, Father Abraham, have mercy on me, and send Lazarus, that he may dip the tip of his finger in water, and cool my tongue; for I am tormented in this flame. But Abraham said, Son, remember that thou in thy lifetime receivedst thy good things, and likewise Lazarus evil things: but now he is comforted, and thou art tormented. And beside all this, between us and you there is a great gulf fixed: so that they which would pass from hence to you cannot; neither can they pass to us, that would come from thence. Then he said, I pray thee therefore, father, that thou wouldest send him to my father's house: For I have five brethren; that he may testify unto them, lest they also come into this place of torment. Abraham saith unto him, They have Moses and the prophets; let them hear them.  And he said, Nay, father Abraham: but if one went unto them from the dead, they will repent. [31] And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead.
(Luke 16:19–31)

This is used as evidence of the ability to be aware of things going on elsewhere, and to communicate with people elsewhere (which would include doing so with God through prayer), even after going to &quot;the place where the departed saints go&quot;.