On your tax return you would report the proceeds, subtract costs and proceeds paid to seller, then the remaining profit would be your flat fee.

At over 4000 sq ft, I'm surprised you won't be able to list for a much higher number to net a decent profit, but without knowing more specifics on the house and location, I am speculating here. 

My father is a certified contractor in NJ—he’s built one home, flipped four, and consistently handles upgrades and maintenance for me and his other clients.I’d appreciate any tips or stories from those who’ve turned equity into a profitable venture.

Maybe that is gross profit when you sell it, but what about the cost to build it?  

Over the years, however, we’ve found that we end up coming down to Orlando quite a lot, especially in the last couple of years, and we end up staying in vacation rentals (Reunion, Championsgate, Storey Lake typically).I would love to simply pull equity from the current property but given that it’s a long term rental and we are Canadians, from what we understand it’s not an option for us.we love reunion but I feel that would probably not be the best for ROI.  

Petersburg area, resulting in highly–profitable investments.If you need professional and courteous property management experts for your multifamily, single family, condominiums or town home, you've found the right company!

There is realized gains & profits, and UN-realized gains and profits.

Whenever I’ve had questions, even when they aren’t profiting they’ve answered my calls.

If you don't have to own your own residence though, why not invest the money in a profitable investment elsewhere and rent in Japan?

Purpose of the fund: To purchase old land, rezone, demolish, and rebuild homes to sell at a profit.