Jump into the marker for the second mission while replay Tommy is buying the assett across the road and you can trigger this glitch. You'll know you got it when there's two Tommys in the cutscene. I don't know how to properly capture game footage so that's why the video is shit and in 30sec intervals. What isn't shown in the video is that lightpost and traffic lights just fall over by themselves when you're running around and most of the sound is gone after you start the mission like this.

I don't think it can be used in a run since it makes the game so unstable but maybe someone here want to experiment with it

If you do this at the first mission the game will crash. I haven't tried any other mission though so there might be som strange effects from them as well

Here's a video of the glitch

So if you walk over an asset mark (those where you buy the asset) and after you've passed it you press the replay button and as soon as replay Tommy is over the mark you press the button to buy the asset. Then you'll get the asset without losing any money. Here's a video with shitty quality that shows this

An important note is that if you're going to use this method then use the improved variant that Adam_ak have on his youtube channel :)