And what are some ways I can minimize the damage to my career given this fact?

Since it's your first deal and you're wanting to minimize risk, then don't buy a $400k house, buy a $150-200k built in the 60's but be careful about what you're buying and where you buy it, your agent should be helping with that.Sounds like you're working with multiple realtors, bad idea.

But day 2 I started to see that the "course" wasn't really a course, but rather a pitch for furthering your education through them.On day 2 they set you up with your "counselor."  

The impact from inquiries on your credit will likely be minimal.

There are limits but generally most people prefer to fully write off what they can to minimize profit and pay less in taxes.Oren

I'd rather complete the rehab on all units right away to minimize future tenant calls. 

I typically show the house and try to sign a new lease while the current tenants are there, minimizing vacancy.Unless it's very hard to rent your property, I don't understand why you need to accommodate a new tenant who wants to begin paying rent a full month after the property becomes available.

But we did minimize it by taking protocols to make sure they have a good track record.

I know there is still liability for us if someone sues but I try to minimize that risk. 

Most of the information pertaining to wholesaling pitched by the gurus doesn't apply around here.