You can get rid of the furniture, then consolidate the boxes in (hopefully) one unit.
If the furniture is in decent condition, you can donate it to a charity that picks up donations (and you can schedule the pickup for the date convenient to you). Let all the relatives know about a month prior that your plan is to get rid of the furniture on X date, so they have an opportunity to come get the items they may want, but don’t let it drag on.
Regarding the scanning - no, you should not be doing the scanning for other family members. If they asked, you should have said no.