These tasks keep even more money in my pocket and help supplement my personal expenses.

Premium is based on total coverage ($2million in my case) and number of cars, boats, motorcycles, private residences, and rental properties.

You could also run into issues with insurance coverage with an illegal unit. 

Looking for coverage for my LLC which I just purchased several mobile homes, I do not wish to provide insurance for the structure, Formost's price is not worth it to me for their higher price, they don't offer a higher deductable to get the price down. 

I talked to my insurance broker, and he came back to me with a quote for about $2200/year.Also, is there any "must haves" in terms of specific coverages that you would need for an STR that you wouldn't normally have for your primary residence?

More than one insurance agent has told me that just because I have a policy on a house doesn't mean they're going to pay every claim....you have to make sure you aren't doing something that goes outside of your coverage. 

Insurance coverage.

However, there are carriers that will add coverage back to your policy by endorsement (with limitations of course).  

DSCR refers to a mortgage that calculates a debt service coverage ratio to determine your ability to repay based on the mortgage payment and proposed rent.Don't look for a hard money loan unless it's an absolute last resort.

That type of policy can provide different (sometimes greater) coverage than a vacant dwelling policy.