@Karen Seguin, it all depends on what you are trying to convey to your tenants.At minimum, any welcome letter should provide updated contact info for maintenance requests and mailing address for rent payments, and if the legal notice address is different than lease, include that.This can also be a good way to politely remind people of any general rules that you expect them to adhere to.  

And they wouldn't do it for us as owner occupants because our revenue comes from selling houses (hell - we're a general contractor - thats how we make our money) which was strange but its their rules. 

Lease Agreement: Use a compliant, detailed lease covering rent, rules, and responsibilities.2.

Its' not the rule but certainly common that filth grows with long term tenants.

I added value to the deal by retaining the 3 long-term tenants on the upper level, providing immediate cash flow, while planning upgrades to their units to justify future rent increases.

I added value to the deal by retaining the 3 long-term tenants on the upper level, providing immediate cash flow, while planning upgrades to their units to justify future rent increases.

I added value to the deal by retaining the 3 long-term tenants on the upper level, providing immediate cash flow, while planning upgrades to their units to justify future rent increases.

I added value to the deal by retaining the 3 long-term tenants on the upper level, providing immediate cash flow, while planning upgrades to their units to justify future rent increases.

Be sure to educate yourself on the prohibited transaction and disqualified person rules that apply to both plan types.  

As you get into the suburbs, the expectations and the rules are different.