Is it legal for a manager couple ask other residents to listen to what one has to say and report it to the management?

It does not sound right, but apparently elder abuse (Adult Protective Services) did not feel it rose to the level of abuse. You can tell your story to the ombudsman of the office of long term care in your state and you can express your opinion in online rating venues as well as here though.

It is a more common practice than you realise. It is one thing to 'watch out for the welfare of a neighbor,' and a whole other story when management solicits spys to work for them, often the only reward the spys get is management approval and a pass when it comes to special treatment or avoidance of manager's wrath.

Upset, just want to validate your feelings about how you have been treated. You have every right to be upset. I understand.
It is normal to want some kind of revenge or justice. A person can sue even after moving away.
However, there is another way. A lawsuit can take years of your life away in addition to what the managers did to you.
If you can get therapy for the (possible PTSD) they caused you, maybe you can start valuing your life, your time as more important than what it would be if you caved and allowed them to steal one more minute from you.
Really, I am upset for you! You go on and have a good life, what do you think?

For older residents to report on each other is not unusual at all. I lived in a senior community for a while and no secret was safe. Administration knew everything about everybody. Old folks gossip and some don't mind reporting it to management. Some people in senior communities are even on the board. A simple rule of thumb is if you want to keep a secret in a senior community don't let anyone know.

It is against the law, but hard to prove, called Management intimidation. Make your case by recording what they say. It happens more to some vulnerable persons when they do not submit or comply to managers who are intrusive, power hungry, mentally ill even, but in a position of semi-authority over the residents. Managers who do not understand that they manage the building and services, not the residents. Any behavior by management similar to this treatment should be met with a letter from your attorney, followed with a civil suit with as many residents joining together in a class action lawsuit against mgr. and owner of residence. This may come up again in your life because you have already been a target. Look up H.O.A. syndrome, Dr. Gary Soloman, online.

In the meantime, demand that they 1) Leave you alone. 2) Communicate to you only in writing. 3) Do not come to your door. 4) Treat you with respect. 5)Follow their own rules.

Perhaps the management meant to report anything that might endanger the individual or others in the senior community. Managing a Senior Independent Living Facility is a difficult task. The safety and security of it's senior residents are of utmost important. I am glad you are happier in your newer environment.

Upset, Were you evicted, if so, what reasons did they give?
You 'got to stay until June?'
Did your lawyer fight the eviction and win for you?

Sendme, She both complains about eviction and gloats over being able to stay. Something is left untold here. No facility wants a malcontent who slanders the staff to other residents, who immediately go back to management and repeat the whole mess with he said she said.