By rich I mean they completed an application, paid the screening fee and we show that their income is sufficient to cover all of their own expenses plus pay for rent and any damages at the unit we are renting their child.

Louis to be a hidden gem.

Does anyone use a general contractor to estimate your rehab costs for a fee? 

There are also often incremental fees that will lower your returns on these types of investments: property management and building fees most notably.

Either a flat fee or a % of profit.

Renovating multi-family/condo-conversion (and potential partnership structures for both)I would be so grateful for some qualified advice and more than happy to pay a consulting fee.

I'm sure there are things I'm not considering and would appreciate your feedback.Here are some additional details about the home and financial situation.Location: Atlanta, GeorgiaMortgage: $5513/mo @6% interestZillow Rental Estimate: $4966Current Mortgage Balance: $716kZillow Home Value Estimate: $825-1.02mAirDNA Information:Projected Revenue: $82.7kAverage nightly rate (as entire home): $347Occupancy: 65%Projected Operating Expenses: $41kManagement Fee: 20% - $16500Lodging Tax: 5% - $4134Property Tax: (included in mortgage escrow)Cleaning Fees: $6600Maintenance: $3400Insurance: $5200Utilities: $5172Projected Monthly Income: $6891 - $5513 = $1378Projected Expenses: $3416 /moAfter Expenses: -$2038 / moHere are my listings:https://www.airbnb.com/rooms/796636182229405398?

Most REI marketing agencies range from $1500/mo-$5k/mo in fees alone.

So will the builder waive his fees?

Well, anyway, he is pretty clear that he does not do personal training for his fee.