Specific technical issue that triggered this post.

Send the notice by Certified Mail AND a separate mailing with 'proof of delivery required' (a cheap date with the post office).Hope this helps.  

Consider forming an LLC for liability protection or an S-Corp for tax efficiency if flipping frequently.This post does not create a CPA-Client relationship.

This post alone says all I need to know about your company.  

This post is spot on—those critical dates can make or break a deal.

Combining HELOC and private funding is also viable.This post does not create a CPA-Client relationship.

Get SMLLC to start, you can elect S-corp when the time is right.This post does not create a CPA-Client relationship.

Hi Jonathan, thank you for the post! 

While not mandatory, a specialized accountant can reduce errors and provide significant tax-saving strategies tailored to your situation.This post does not create a CPA-Client relationship.

PS: posting on FB or craigslist nowadays is just begging to be pirated, it's dang near a certainty it will be pirated.