$30,000 for a consulting fee sounds like the way he makes his money, not by buying real estate / short-term rentals.

I'd consult a Title CompanyInteresting idea you have here - hope it goes well!

Finding a good and reliable contractor can definitely make or break a deal.

I would like to know which sites are reliable to do some market research on population growth, and income on zipcodes, and counties in Delaware.

Here are the Positives:Upfront Payment: The tenant’s offer to pay the full year of rent upfront, along with the deposit, shows a commitment and provides financial security for you in the immediate future.At least She was Honest in Her Communication: The tenant has been transparent about her situation, which can be a positive sign of reliability and sincerity.My Negative Concerns:Her Future Financial Stability: It's only a one-year lease, if her medical condition and financial condition should worsen (Heaven forbid), you may have to face her wanting out of the lease earlier than the 12 months and eventually you may be faced with having to decide not to renew the lease (after her 1 year contract is expired) based upon the sad news of her condition becoming worse, (Heaven forbid).  

I have a reliable contractor who has done flips, I am also a licensed agent and know my market.

I’d encourage you to consult a tax professional for specific determination and advice.  

over the period of time , we have observed that Individuals or entity get paid finders fee / consulting fee specially on commercial transactions .I would like some feedback.

Although, Buildium is good and affordable, it isn't just as robust compared to AF.I hear negative things about doorloop and don't have any experience with it.I consult my clients in AppFolio and Buildium so it really just the price and how big you want to grow your business.

With that said they are quoting me $250/hour to consult in tax planning services in addition to the tax preparation fees.