Start by targeting your audience more effectively—hone in on vacationers, outdoor enthusiasts, and families that would love your location.Also, consider looking into property management services that specialize in short-term rentals, or even investing in some marketing tools to help boost visibility.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

I'm in Chicagoland and we have what I call a "seasonality effect." 

That means effectively pricing your rental to others in your area and even looking at apartment rent rates to compare with your SFH. 

As a result, new homes effectively cannibalize appreciation and rent growth of existing homes.

Most leases you can purchase are generic in nature and do not equip you with very helpful tools to manage your property in the most effective and efficient manner, lowering costs, reducing liabilities, creating revenue centers, etc. 

As long as your opt-ins are legitimate and you are able to verify the number you're sending from, you shouldn't have any issues: https://www.webfx.com/blog/marketing/sms-software/

Effectively turning a 2 unit property into a 4 unit. 

4) What are some effective ways to build a network and connect with realtors to establish valuable connections?

I’m very bullish on Passive Investing and creating multiple streams of income (mailbox money as some would say) and see this route as an effective way to achieve that.