We don't often ask for explanations for second home unless there is a reason to. 

I’m just curious, if anyone can give me a better explanation I’d really appreciate it, thanks!

I genuinely want to find the rationale behind the 5%-6% commissions.David Greene's explanation for this is that "probably 95%-98% of the times that a Realtor helping clients, they don't get paid for...You have to compensate them enough so they make enough to support themselves for all the people that are not paying them."

I have never dealt with a propane-fueled water heater, but I find the explanation by the plumber questionable.

Basically, this website sums up everything that I've said and gives 6 real world examples with completely difference scenarios:http://www.themoneycommando.com/umbrella-policy-vs...Account Closed That's a very good explanation, assuming there is a mortgage attached. 

In light of the above explanations, The information below vividly illustrates the repayment schedule for the loan.MONTHLY LOAN REPAYMENT PLAN* Loan Balance: $325,000.00* Loan Interest Rate : 3%* Loan Term: 20 Years* Monthly Loan Payment: $1,802.44* Number of Payments: 240* Total Interest Paid: $107,586.13* Total of 240 Payments: $432,586.13NOTE: The monthly loan payment was calculated at 240 payments of $1,802.44In good fate, If you fully agree to the terms ,condition and repayment plan you will get back to us with a scan copy of any form of id card for verification because your loan is undergoing approval by the board of directors in and a positive result will be out soon,you will be approve of your loan after finding all information are genuine if otherwise you will be declined of your loan so applicant are advise to provide real information for easy approval of loan to them....

Is there a reason why you have chosen that specific geographic area? 

Especially seeing that the primary airport is too small and geographically constrained.  

The boyfriend somehow cant understand my explanation.

No matter how long a guest stays compared to policy there will be an explanation or excuse or expectation that you will look the other way.Hopefully people understand that with you living next door there will be more enforcement of the rules, but you need to figure out what you can tolerate becuase they are going to push you to the edge and trying to be ultra strict may backfire.