If you are leasing a mobile home with the intent to own it, the owner is entitled to inspect the unit from time to time under the law of all states. However, once month seems somewhat excessive based upon my experience in such matters. Typically once a quarter is acceptable within the industry.As to the times per month the landlord can inspect the unit, I suggest looking at your presumed written lease. It might state the number of times the landlord can do so in a year. I would ask the landlord the rationale for the monthly inspections. From what you have written, the once a month inspection seems allowable.As to the extra convenience fee that you are now being charged, whether or not you can be charged depends upon what your written lease states. If the lease is silent on this charge, then the landlord is not allowed to charge you for this new fee.