I could put a down payment for a conventional (20-25%) 550k duplex, but I feel it could hurt my chances of buying as many duplexes in a 5 year period (for example) if I go conventional VS an FHA at 3.5%. 

Feel fortunate that you didn't overpay in any significant way for the work this plumber did do. 

Jaedon, that’s a question I’ve seen stir up a lot of debate, especially these days when the cost of capital and property prices can feel like they’re arm-wrestling over who goes higher.

Feel free to send me a message

During the renovation, I faced several challenges due to the home’s age and hidden damages, including ruptured plumbing, termite infestation, rotted wood, and lack of insulation.

Those things won't matter if your business crushes it. i feel like it would matter when those things add up and start tearing at ur profit If banking fees cut into your profit, your profit isn't big enough.

Most standard MLS contracts now include a box check for 1031 exchanges. 

That said, the number of times I get on a call with a BP lead and realize they have already thoroughly researched me, including my past deals and content, is incredibly high.This goes to show that the value you put out there matters.

Agreed- with a long term rental you can be very clear and upfront about all the nuances/quirks of the property and what is included because the transaction has far more direct communication.

Would recommend you read a couple books about BRRRR, that will give you the basics and then feel free to reach out.It remains a great strategy, but you have to manage your expectaions.