Yep, have great tenants, they have been there for going on 8 years and they pay late almost every month, which equals a $100 late fee (we plan for it, so really no impact to us). They paid to have the place repainted (neutral colors) and are saying they are going to replace the carpet (they stained it).
I just sent them a notice that as of April 1, rent goes up $100, still well below market value for the area and we plan to raise it $100 every year until up to prevailing rates. We have enjoyed not dealing with the place and they are nice people. We finally feel that if they moved out we would renovate and collect more rent; however, not interested in forcing them out.
Pretty easy letter, made one up, based on what I found on google, should have done that to begin with.