Is that something that requires professional or can anyone fills it out and signs?

Also any specific areas or companies that are professionally managed and well kept would be great.

I’d be curious to hear from actual appraisers on this, however as a solar professional in my experience appraisers will not immediately ad value for solar, despite the appraisal institute determining through a comprehensive study that solar ads $20,000 value for every $1,000 in annual energy savings.

More professional business?

@Shahn SattarI’m not a tax professional, but I don’t think you can pay their heloc and write off the heloc interest on your taxes as an expense.Only way you could write off interest as an expense in this scenario is if you are actually paying your lender interest for the privilege of using their money (on top of the interest the heloc charges).

I find the popularity of QuickBooks important.

If that's the case, essentially, there are two types of professionals that can help you when investigating and analyzing the comparable sales in an area -- real estate agents and appraisers. 

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

You may want to even intern for a seasoned professional. 

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?