I have not increased the rent since 2013 to now

I have not made any rent increase for 6 years because I value good tenant. Money is good but I prefer a good tenant more than rent increase. Keeping a good tenant will save you money and keep you away from trouble. 

The reason I have not increased the rent because they never late on rent, no big issue with the property ( Small issues are normal as the property goes aging ), another reason is they do not make minimum income with two college sons, I want to help them to release some of the financial pressure. Life is not just money, life is full of caring, loving, helping... 

I believer the more we can help ( if we can), the more happiness we will gain.