I have expierence in new construction, that's not a problem.Here is elaboration on the last 2 items:2.

Here's a https://www.irs.gov/businesses/cost-segregation-audit-technique-guide-chapter-4-principal-elements-of-a-quality-cost-segregation-study-and-report to the IRS website noting specific items that are included in the cost segregation study report. hmm, that website is a 404 error.  

Taking real time notes on deficiencies allows for clear understanding if the items make their way to a buyer repair addendum.

The only item I would suggest is double check the payment terms of the your HELOC... in particular, can you pay interest only or are you required to pay a portion of principle each month on the amount utilized.

The PM should provide itemized items of what was done.

I think you will definitely want to talk to your lawyer because there may be items linked to this transaction you are not considering. 

We invested $55,000 in key renovations, focusing on modernizing the interiors, improving curb appeal, and ensuring the property met market expectations.

The other business I run is reselling, listing items on eBay & FB.

Some people are sending supplies (clothes, other needed items like school supplies, food for humans and pets, etc). 

Despenas LLC aka SDIRA Wealth aka Modern Day Living Real Estate LLC are all scam companies that inflate housing prices in the neighborhood only to sell eviction-prone extremely damaged homes with no intent to perform the agreed-upon inspection repairs and send you through multiple corporate hoops after purchase only to completely ignore you immediately after the sale.