They got the difference.We went to them and said (a little more politely than this): "We now own it, you can either rent it from us for $X,XXX per month, or you can get out.  

Please call or text us at xxx-xxx-xxxx.

That keeps you out of any of their personal disagreements later when they move out.If they've already moved out and they aren't agreeing, then cut the check to the person you got it from and have them sign for receiving it with a similar paragraph:Deposit amount of $XXX was returned to tenant X, who paid the initial deposit in the amount of $XXX.

Nothing changes on my end, I still am looking for $xxx on the 1st of the month, whoever pays that I don't care as long as it happens."

I will usually lead in with "based on the repairs needed, and the condition of the property, we would be able to offer you XXX to meet our current business model." 

I think I will probably just notice the dog issue and omit most of the rest -- and the color commentary -- setting aside my compulsion to make everything interesting.

Phone XXX-XXXX, tenant responsibilityWater: Missouri American Water: etc, etc, tenant responsibilitySewer: MSD, etc, etc, Owner pays, tenant portion responsibility: $15.00 monthetc for any other utility, internet, phone, etc.This sheet provides several points, one is to inform the tenant who pays for what, another is who their provider is, so if they want phone, and its an AT&T area, they know who to call to get service, also helps them to get utilities switched into their name before move in.

I would simply refer to it as operating your business.I understand that you operate a business where you allow your tenants to run roughshod over your business and property however most landlords are considerably more responsible.I understand your lease only consists of  one article ...rent is due in the amount of $XXX, however most landlords include additional language they expect tenants to respect and when they do not the landlord will enforce their lease.

(Yes, many landlords put illegal clauses in their lease agreements about the first $XXX dollars of the repair being up to the tenant.

Ok so the simple answer to your question is to give them notice (prob 60 day since they've been there so long) which basically just says that you are ending the tenancy and they have until XXX date to leave.