Periodic property inspection letter
Regular property inspections are a necessity. You will need to make sure your tenant is treating your property with the respect and care it deserves. Most landlords and lettings agents carry out property inspections on a quarterly basis, but for long-term tenants, who have occupied the property for a number of years, you may choose to inspect the property less frequently.
You should try and be accommodating to the tenant as well, and arrange a time that they are comfortable with. Bear in mind that most good tenants will want to do a 'proper clean' (out of natural pride) before you arrive, so give them plenty of time to do this: after all you are coming in to inspect their home.