For myself hands down the fastest way to get to Fi is via house hacking. 

The house is set way back at the end of a long winding driveway, the front is fully fenced for maximum privacy. 

You need your house rules to say no more than XYZ people, and no guests count over the number in the listing between 10:00 PM-6:00am or something similar.

A few years ago there were a lot of get rich quick types, and I still get contacted by people who think they can buy 2 houses and retire on the cashflow. 

Hey there @James Colgan - Love the idea of house hacking a duplex!

HI, I own a part share of a nice recently renovated house in North London, with other members of my family owning the rest, left to me in my fathers estate, with probate granted in 1999, as a tenant in common.

The housing market never ceases to surprise us. December marked a big moment: for the first time since mid-2022, home prices increased year-over-year in all 50 of the largest U.S. metro areas. Yep, every single one.
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The main thing I see when coming across this is deferred maintenance.

The main issue is your exit is capped so if your costs go up, your profit goes down.

Omni Key sells mainly single family with some duplexes, and advertises off market deals on new construction and in fill properties.