Almost every property on my street is a 3+ unit property.Now, I understand that I cannot build a quadplex due to zoning restrictions.

Government now can restrict and cap your rent increases 3.

Utilize Off-Market DealsOff-market deals are valuable because there’s less competition and potentially better terms: Direct Mail Campaigns: Send targeted mail to owners of distressed, vacant, or inherited properties.

Adjusting some zoning restrictions and streamlining permitting processes to encourage more private development would have a quicker impact.

Here (and I'm assuming in most places), the condo association governs STR restrictions, not the local/county governments.

-Are there legal restrictions on this in NC, such as the length of the option?

Hey @Austin Bright, We use batch leads for our SMS campaigns, which has been working for us. 

People wouldn't believe how many deals are lost at what I call the "decision phase" where a lead from an offline marketing campaign goes to research you, and doesn't find good credibility online (which includes the website). 

The rest of the money will be put away and saved for a 5-time mailing direct mail campaign.

Quote from @John Underwood: First thing to do is check with the city or county to make sure the ADU would be permitted to be a STR.The municipality has an application process but initial indication is that it's not overly restrictive in the area I'm looking at.