Whereas an umbrella policy, though providing liability coverage, do not. 

As many investors know, lenders typically require more down payment 15-25% and to utilize Debt Service Coverage Ratio or DSCR loans would not allow vacation rental projections or income to be utilized for qualifying purposes.

This isn't uncommon but getting coverage for a 4-unit if well maintained shouldn't be difficult at all.

I have not established an insurance policy - yet - to supplement the condo's master policy. 

Keep it Simple until you start approaching $1M in worth or value in the property then you can start using LLCs for liability coverage. 

For individuals tethered to a W-2 job, this presents an opportunity to judiciously manage their tax liabilities while exploring supplemental income avenues.If this sounds like something that fits your investing goals, please reach out.

Just filing suit against the business will force the business to notify their E&O carrier or likely void their coverage.

The agent stated "I did include some coverage for vandalism/burglary which are optional, however, just want to make sure you are covered in the event of a loss." 

Some mortgage brokers or financing companies offer Debt Service Coverage Ratio based loans. 

I have also heard that Waivo is another good supplemental insurance.Important- This is not a replacement for landlord/ property insurance.