From what I’ve read in Bloomberg, electing S-Corp taxation for your LLC might reduce your self-employment tax burden when you start paying yourself a salary.

Since your goal is lowering monthly payments for better cash flow, it might be worth focusing on reducing expenses elsewhere or exploring other investment strategies.

Run the calculations on the expense of doing a refi at a slightly reduced rate vs. keeping the current loan for whatever period of time you think you will hold this house.

I was checking online for medium term rental proces in that area.

This increases the likelihood that they will reduce or reject the claim.

I retired from my w2 job a few years ago, but recognize that no W2 income reduces loan options.  

You could also list the property FSBO at a reduced price since there wouldn't be an agent.

Add to that the fact that private financing typically involves way less bureaucracy, with reduced paperwork and fewer hoops to jump through.

In some areas, purchase prices and value add opportunities align well with BRRRR, while in others the margins might be tighter.NOI plaus a big role in success, esepically with MF, so increasing rents and reducing expenses are key.

There are several courses online, but before paying a dime it would be helpful to watch the several videos on YOUTUBE on giving prompts.