My copy of Shepherd the Flock of God will not allow me to copy so I am typing what it says. Please forgive me for any typos.
Those Who Have Not Associated For Many Years
40. In deciding whether to form a judicial committee or not, the body of elders should consider the following:
* Does he still profess to be a Witness?
* Is He generally recognized as a Witness in the congregation or the community?
* Does his conduct continue to affect any other person, such as in some cases of adultery or child abuse?
* Does the person have a measure of contact or association with the congregation so that a leavening or corruption influence exists?
* is the person willing to meet with a committee , thus admitting accountability to the Christian congregation?
41. Depending upon length of inactivity and other factors suggested above, elders may determine to hold the matter in abeyance. In such a case
They would make a record of the person's questionable conduct for the congregation file. When the individual again shows interest in
returning to the congregation, they can clarify these matters.
So basically if you have friends or relatives for example an ex wife who want to make issues of things it might prompt the elders to pursue you even if you have faded. On the other hand I have seen many who just go about their lives after leaving and they are not bothered by the elder body even if after a number of years are openly observing holidays and birthdays, voting or even holding elected office.
I did find this point of special interest ' is the person willing to meet with a committee , thus admitting accountability to the Christian congregation?' so perhaps if you are inactive and have had no contact with the congregation for a long period of time refusing to meet with any elders is the best call.