Short-Term Rental Permit Requirement. Find 583 flexible and convenient short-term apartments for rent in King Of Prussia.Month lease is short term but the shortest of all is a monthtomonth lease or a 30day lease agreement. What is a month-to-month lease? Ask your landlord if they would be willing to write a short letter explaining you were a great tenant. There's only one step left to complete before you can list your shortterm lease property: calculate the monthly rent for your tenants. Term lease will likely be anywhere from 3 to 6 months. Year-round rental networking resource. Customize the Template: Fill in the template with the gathered information. The most common lease terms are for one year or two years.