Next time give them a call or email/text to let them know the notice was mailed and what it contains. 

Suppose they say "No, sue me."

Also if this property is on septic that also can throw a wrench into the ability to call a space "a bedroom" as septic systems are sized and permitted based on the bedrooms.

For context, I am working on a passive investing platform with no cash-flow and emphasis on equity growth.

@Jerry Velezif a property is owned outright with no mortgages, debts or liens on it, then it can (potentially) be purchased on seller financing. 

If your company can’t write the policy, call around and see if someone else can.

No, you weren't spamming, but the system doesn't actually read the messages, it just reviews them.

With this being our first property though, would a business bank account just be more of a hassle since we want a joint account with no fees?

No. 

Type Line Item Fee Fixed Fee Collected Rents 10% of All Collected Rents New Tenant Search & Onboarding $600 Variable Fees Business Hour Service Calls $90/hour + Materials Cost + Tax After Hour Service Calls $120/hour + Materials Cost + Tax 3rd Party Coordination HVAC Cleaning & InspectionGutter CleaningSpring/Fall Exterior CleanupSeasonal Mowing & Weed TrimmingSeasonal Snow PlowingGeneral Contractor Negotiated Vendor Cost + 10% Oversight Fee