It's fantastic that you're exploring opportunities with the VA Home Loan and considering home hacking with multi-family properties.Making connections with seasoned real estate investors in the Lawrence, Kansas, region is a terrific method to get advice and insights before you start your real estate career.

I intend to focus on the BRRRR method primarily, but am open to learning all kinds of other strategies including tax lien deed investing, foreclosure purchasing, and anything else that may help achieve both my short and long term goals.

What methods do you recommend?

Quote from @Andrew Frishman: I am confident the "Flip system Method" is most likely good.   

You need to use invest in the asset class and the associated method with the opportunity. 

Since you're looking for tips, have you heard of the BRRRR method?

To do that I could cut a hole in the dry wall and turn it 90 degrees so people can use it from the hallway but there is a light switch for a nearby bathroom in the way so that would need to be moved into the bathroom as well.

If that does not work and they were the cause of you losing money you can always sue them another method is to file a formal grievance with the state Bar in your state and the state where they operate. 

@J Scott I know everyone loves the BRRRR method.

This method does not seem replicable on a large purchase.Thank you!