Thanks everyone for your input.
I did give them 40 days notice of rent increase, first they said they will be moving then, 2 weeks later they said they have thought it over and would like to renew the lease. I sent them a letter to sign and they never did. Then I went to sign the lease with them about 6 days before renewal and they keep blowing me off. First of the month came so the lease, auto renewed, I cant raise the rent now but they are still required to pay. They keep blowing me off and on 6/8 they said they are now moving and use last months rent for this month which they never paid. I went to her work and talked to him at the house and both gave different stories. One said they lost there job, other one said im not a good landlord and they fixed alot of things and put alot of money into the house which I don't believe since nothing was really brought to my attention.
I guess I just need to use there last month rent for this month and make sure they move at the end of the month so im not out any money.
Any advice is appreacited.