I have it narrowed down to two agents, one has more general experience in the area and are part of a large organization.

I'd love to connect further and hear more about your experiences!

DIY A first-time DIYer can expect to spend several hours replacing a kitchen faucet.The time it takes depends on your experience and the faucet's complexity.You'll need tools like wrenches, a putty knife, and a small bucket.You'll also need materials like supply lines, silicone caulk, and plumbers tape.You may be tempted to be cheap and estimate only 30 minutes, but you should estimate an hour to be safe.What about the time to go to the property to figure out if a 2-hole or 3-hole faucet is needed, then drive to Home Depot to get it, drive back to install and then head either to the next job or back to the office?

Adding an ADU: With your dad’s construction experience, building a 2-bed/2-bath ADU could significantly increase the rental income.

I've completed extensive rehab projects but had never ventured into ground-up construction before this experience, and I can honestly say it was a lot of fun.

I have experience with minor to medium size rehabs but nothing as extensive as needed here.

Does anyone have experience with banks that offer these without fees? 

A renter for a stand alone rowhome is usually a different profile from a large apartment complex renter in my experience.

Even if they do have 20 years experience...how do you know really?

I would recommend talking to many lenders/brokers to see which one has the most experience funding these loan types.