My journey into real estate began with a fascination for property markets and a desire to create impactful investments.Currently, I'm eagerly scouting for opportunities in real estate, aiming to leverage my knowledge and network to uncover hidden gems and lucrative deals.I thrive on collaboration and believe in the power of partnerships.

Can't wait to dive in, uncover knowledge and possibly meet some other realtors/investors.

Do people even test for it upon purchase inspection or do most not uncover a potential issue?

There are a few details to uncover here to determine the next best steps.

Your blended rate will likely reduce with each payment as well. 

Every time a guru “education” course was co pleated, I’d receive 10 -20 phone calls from either investor wannabes “building their team” in preparation for all the real estate “great” deals they were going to uncover or the same wannabes who had already identified a “great” deal (they hadn’t submitted let alone secured acceptance of an offer yet) and were lining up their financing which since they were purchasing at 50% of the value they’d end up with not only 100% financing but also walk away from the closing table with cash in their pocket.  

I think that is always recommended and it is something I do.My inspector has uncovered things they werent aware of and has also alerted me to issues to monitor to make sure they are rehabbed properly (for instance ensuring that the electrical scope included adding additional circuits because the current number was deficient).

I wouldn't touch your 1st mortgage unless the blended rate (Both the 1st and 2nd Position loan rate) is higher than a traditional cash out refi. 

Issues can and will be uncovered once a renovation gets going. 

If you want to blend a home with 3 rentals then you are likely to end up with a 4 plex that does not cash flow in the same way as it would have if all the units were rentals.