If only trees were that easily replaceable. I'm not sure how long you think it takes to grow a tree but a good formula is 1" of girth = 1 year of growth, so a reasonably small tree with a 1 foot trunk is over a decade old.

The pine tree is fully mature, maybe 40+ feet high. Its the one with the most damage to its bark. Too big for me to cut down on my own. Its also next to a fence. The blue spruce I could cut down.

Here in Sydney Australia some local council restrictions are very onerous when it comes to trimming or removing older trees (except a short list of excluded species). I've heard of fines of $40,000 or more. Nothing like that near you?

City has no bylaw prohibiting removing trees

Deer love to rub velvet of their antlers on the pines around me and it's not uncommon to see a whole group of pines without any branches on the lower half and they rub all the bark they can reach off in the fall. If it's 40 ft, would wrapping the trunk with tree wrap protect it until their gone? Then asses it, hopefully it starts to cover the exposed areas on it's own

"would wrapping the trunk with tree wrap protect it until their gone"

Bear in mind that the tenants have already ignored requests to stop destroying the trees, and they have opposable thumbs.

My thought was that some teenagers need a constant reminder.