If they push back and need more icing on the cake, consider offering an equity share arrangement.

Definitely soak up all you can from your mentor and keep pushing with wholesaling—it’s a solid start.

There are too many Youtubers out there trying to get clicks that are pushing a message across the entire country that is not true. 

After the low rates started to increase when the FEDs pushed to raise them the inventory went up significantly (in January 2022 there were active listings on the MLS of 40-45 listings, now if you look 160-170 listings).

That's part of the reason it is close to a wash for most people.   

I'd ask your engineer that question and say you honestly want to know (Hanlon's Razor) if he dropped the ball on this one or if he had a reason not to call/email DOT before pushing your final design through permitting.It sounded like he expected the possibility that DOT may flag the project and had a plan to respond. 

If you push back and price compare you can always keep them honest.

Is there anything I can do to push this cost on the tenant somewhere or is this something I have to pay?

First time I've come across it and it sounds like they're going to be making a big push on it. 

However, that was because the jobs were here.However, with the push of jobs to other states, may make appreciation less likely.Best of luck in whatever you decide.