I recommend checking the areas near University Circle for that reason, but there are some spots not far from there that can be rough, so do your due diligence.

Same tax situation and more likely higher potential to appreciate faster.

There is still a risk: You do not have the right outprice and lose money, your deal goes south due to unfound things when you bought it, then the rehab phase brings them up, and you spend more, and the market changes, which is something that can happen on a moment's notice.

With down payments as low as 5-10%, plus low property taxes compared to the U.S., investing in German real estate is more accessible than you might think.If you’ve ever thought about owning property overseas but felt intimidated, stay tuned.

As far as flying (tax deductible too) You can do that and if it's in the states the total trip shouldn't cost you more than $2000 all in with lodging. 

Talk this over with a lawyer because under current state law, you will not be able to evict due to the cold.

LC already had a tight inventory due to an instituted CAP.

Harder to cash flow due to 25yr am vs 30yr standard.

If the permanent financing will allow you to recover most of your initial investment and the fair market rent covers the principal, interest taxes, and insurance with cash left over, you have a BRRRR.

If you do underwrite a deal of theirs, just do your own due diligence.