This property consists of main cabin (permits in place) and a tiny home which is built without city permits.

No pets (with the exception of medically necessary pets) of any kind are permitted without specific written permission of landlord in the lease document, an addendum to lease, a non-refundable pet fee acceptable to landlord and/or an additional pet deposit or additional security deposit.

Don't forget to pay the $10 sales tax permit fee.

Ideally, you want several employers to spread the risk associated with a dominant industrySupply and DemandCensus.gov under the “Selected Housing Characteristics” tableDetermine by analyzing the five-year rental vacancy rates and median rental rates in the market, as well as the year-on-year change in the number of building permits created for commercial properties (five or more units)The number of five or more unit building permits won’t tell us much on it’s own.However, a huge red flag to you would be when you see an increase in the number of permits in combination with an increasing vacancy rate and/or a decrease in median rentsAs vacancy increases, median rent and new building permits should decrease… and vice versaBest Case:Low or decreasing vacancy rates and increasing median rentsDecent Case:High vacancy rate that is decreasing Stagnant vacancy rateWorst Case:Increasing vacancy rate and/or decreasing median rent An increase in the number of building permits (5+ units) in combination with an increasing vacancy rate and/or a decrease in median rentsMiscellaneousResearch Other Characteristics relevant to the strength or weakness of a marketExamples:Landlord vs. tenant-friendly state?

You need to live within 50 miles of a unoccupied STR, you need to be living there, lottery system for new permits and you don't get one, STRs are banned overall in certain zones, HOA votes to disallow STRs.

Depending on how extensive the renovations are, in many cases the architect that draws the renovations plans and helps obtain the building permit is then allowed to supervise the works by signing a "declaration  as the responsible supervisor" and the city inspector comes at the end for a final sign off, allowing therefore for a faster construction timeline.

JimPersonally, I would just talk to the tenant and let them know that you are willing to allow them to make this improvement, and that you will assist them in the permitting process as your contribution, while making it clear that when they ultimately leave, your expectation is that the storm shelter will stay.

Need a permit to rent which includes the name of the tenant, need a permit for a vacancy, contractors need to be licensed and registered with the city to work in the city.

Also check the City's online Zoning Archive where all the history of the buildings permits and prior use and occupancy usually is located.

Make sure you know what you're getting into -- have a good grasp of zoning, permitting, setback, etc., regulations before you decide to move forward.