These items can make it expensive or difficult to get insurance for as well. 

Are they a nationwide firm?

.- Insurance: Short-term rental insurance (beyond renters') can protect you from guest-related risks.- Licensing or Permits: Check if your area requires permits, as some cities have fees for short-term rental operators.Breakeven Analysis: To calculate your breakeven occupancy rate, add all monthly expenses (rent, utilities, cleaning, insurance, etc.).

It also depends on the situation sometimes a HELOC is warranted for short term financial needs so long as you have a plan to get back in the same or better financial position afterwards and the "means," and "will," to carry out this financial or mortgage plan- HELOC's are typically full documentation qualifying loans so you'll need actual income to qualify whether it be from pension, insurance, rental's, etc that are all fully documented on taxes, W2's, 1099 forms, etc.

As others have said watch out for property taxes and home insurance too. 

An additional benefit of a detailed engineering-based Cost Segregation Study is that it can increase potential insurance premium savings as well as provide support for the property tax appeals process.

The GP was so open and transparent every step of the way with the different types of insurance that were essential, adjusters, replacement cost, debris removal, code upgrade, etc.

What about taxes and insurance, how much are those?

What are the best companies to sign up your properties with for insurance housing placements?

Make sure you’re checking in on your tenants, getting them to document any damage, and having solid insurance coverage.