Is there a national (or regional) association of landlords or property owners?

[Dirk S.]

I am looking for an organization that supports landlords and property owners across all their needs: tenant relations, financial, legal, other advice. I am not from the US originally and in my home country there is such a thing, a national organization with offices in every major city, who provide information and services to landlords and home owners in general, for a small annual fee. 

I googled this and found 2 so far (let me know what you think):

https://landlordassociation.com/membership.html#join   (specializes in tenant screening and management)

https://www.american-apartment-owners-association.org/regist...    (seem to provide a broad range of services, closest to what I am thinking)

Of course, this website is phenomenal and I have benefitted greatly already, but still wonder if there is such a thing.