Septic will depend on your state and local codes.

Your success will depend on buying appropriate investments for the local market. 

Because you are buying in NV you will need to look for local lenders, most nation wide commercial lenders won't lend in the state. 

Not being there and knowing the local market, I still think there may be an option to hold that house and deal with the negative CF for a year or two....allowing the natural market equity increase to catch up.

By using a email collection service like “Emailcollect” you can inexpensively get past guest data and send out a monthly touch point about something that’s happening locally without it becoming a major drama of making up newsletters. 

I recommend attending as many local real estate meetups as you possibly can.

This is probably a tougher one considering most Hard Money / Private lenders that are go-to for BRRRRs like this focus on residential only - your best bet might be private money found here or in person networking or a local bank / credit union. 

Have you reached out to friends, local groups, businesses, schools, hospitals, etc. telling them about your rental and the special promotion you are offering to their members?

To this point everything has gone rather smoothly; however, we recently received news our local insurance brokerage will not take on the risk of thia property.

Your duty to disclose is a local issue.