@Steve Cribb to be successful, landlords need to set boundaries.Many tenants, especially desperate ones, try to make their problems their landlord's problems.As a PMC, we try to be reasonable, as "life happens" and "tenants are tenants for a reason", meaning they don't plan well and live paycheck to paycheck.Part of our being reasonable though, involves deadlines and we AUTOMATICALLY start the eviction process so a tenant knows this. 

Right now we are still in the process of removing two of the other three tenants (I think we finally made it, aside from a junk car left on the property) and working towards getting the place fully rented.

(Car crash, vendor hurt, dog bite, etc etc.) and none of owe LLC’s or corporations or holding companies will help you in those situations. 

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

@James Carlson A Home Occupation Permit application with the city of Denver will automatically grant you a 3rd unrelated resident, but still not enough.

The problem is that there constantly seems to be fees being charged to me an example of this is in the contract  there is an additional 100 dollars allocated to sewer and water that the tenant automatically pays every month with rent and anything outside of it should be billed to the customer (there is no specificed time when this will occur on the contract) but it appears to be billed to me and after speaking to IIP it's like they made up rule on the spot stating that after 6 months all of the additional utility fees would be billed to the customer and in the meantime I am being charged for it.

Conversely, On homes I have wanted to expand,  I have removed closets from bedrooms in order to label these as studies or offices, so that I could build additions that are labelled "bedrooms" (customized to my needs),  in order to avoid the requirements of expanding a 2 car garage to a 3 car garage (a local requirement when building beyond 4 bedrooms).  

Strange that it didn't automatically transfer over since I had sold another property before without having this issue.

You should use software that automatically sends you rent payments.

Your software hopefully includes some kind of "disposition worksheet" or something else with a similar name, and, once completed, it should create the required IRS forms automatically.