It's required by ordinance that the water be changed between each guest.There may be a certain amount of trial and error as you work with your cleaning/maintenance staff, communicate well with them but give them space to do their jobs, and if it doesn't seem to be working out, go to someone else.  

I’ve heard horror stories of people who have to tear apart their house because of work that wasn’t permitted.I’m wanting to buy another home and rent this out as a duplex but I’m worried that if I apply for a rental license or anything that’s dealing with the city, they might find something that’s not permitted and we’ll be stuck with a hefty bill.

IE change your drivers license to reflect both addresses and pay the bills on both to make it like both are your primary residence? 

The $600 heating oil bill + little to no rental income + PITI in January will balance your actual numbers out for the year.

Unused contingency funds, unless they were received directly from the borrower, must be used to reduce the outstanding balance of the renovation mortgage after all of the renovation work has been completed and the certification of completion has been obtained.The loan is not re-amortized.Draw Schedule:The HomeStyle program has a maximum 4 draw process.The initial draw can be up to 50% of the total project and can be for materials for the project.The final draw will be at least 10% of the total project as retainage and funds will be released upon receipt and approval of final inspection, Certificate of Completion from Appraiser, signed All Bills Paid Affidavits and Lien Waivers.Additional Draw Information:Ø Signed Draw Request by borrower and contractorØ Signed All Bills Paid AffidavitØ GMG review and approve the draw request and will release funds for disbursementØ A check will be issued in the name of the borrower and contractor and delivered to borrower via USPSØ An inspection of work to date will be performed at 50% completeFinal Draw Information:Ø Signed Draw RequestØ Final inspection/Completion Certificate will be required for release of final fundsØ A Title Update showing property free from lien or encumbranceØ General Contractor’s Lien Waiver AffidavitØ Affidavit of Completion GR will review and approve the draw request and will release a check in the name of the borrower and contractor.Change Orders and Cost Overruns:Changes to the initial plan are not permitted unless prior approval by Guaranteed Rate.

Nothing, and I mean nothing, can be learned from these events that cannot be learned through trial and error, attending LOCAL workshops/meetups, and in the recent decade, Youtube/Twitter.All for Bigger Pockets to earn $$$, but these events are a waste of money and time.

You could read 100 books and still need to learn more because certain things must be learned through trial and error.

There are 3% rent increases built into the leases and I can bill the tenants for increased CAM expenses, taxes and insurance.Am I missing something here?

If they are ghosting you, start by taking photos of everything and itemize their bill. 

Thank you @Bill Hampton.