- What portion of the total budget should be allocated for marketing and insurance?

Throw in some extra costs like moving expenses, professional photos (a cost the STR PM may also need to pay depending on the quality of the existing photos), renter's and lessor's insurance and a listing on furnishedfinder to round out some of the start-up costs.

it is hard to get on the radar of insurance companies. 

For instance, at one point when I was working as a senior accountant in a property management firm, I was training a guy who was a CPA for 30+ years even though I was hired 2 months before him.I worked only in real estate accounting and financing and became CFO.

Is it possible to cover your mortgage taxes and insurance through what the average market amount is in the area?

Is your DSCR ratio greater than 1-meaning are you cash flowing (according to the lender's criteria of mortgage, property taxes and insurance (and HOA) if applicable).

Louis Insurance Services, or O'Connor Insurance.

Additionally I spent $35,000 on property taxes, $17,000 on insurance, $35,000 maintenance and repairs.  

If you are going to have trouble with sub to, it will from your insurance company, so I'd tread lightly for sure.

In that case, you'll strongly want to consider what putting personal-use property inside of an otherwise business-use LLC would do to the liability shield, as well as insurance and tax reporting.There are several considerations that can go into the analysis of whether you need an LLC or whether a large insurance policy will suffice.