. ;) I don't know best I just know what has been mutually beneficial for all sides and no complaints have ever been made doing it this way.

But if your goal is rapid expansion, keeping that extra cash to invest in more properties might be more beneficial for scaling.If you're able to grow at 3-4 SFH per year, putting the extra money into expanding your portfolio could generate higher returns overall compared to paying off the loans early.

NOTE: One "new" negative is that all small LLC's are now subject to the Beneficial Ownership Information Reporting requirements of the Corporate Transparency Act. 

I have been on BP for 10 years and never found people to do deals with, so Pace’s tribe has been way more beneficial for me.

Noted for future posts, though again my intent was to help investors understand that making these upgrades can be incredibly beneficial and isn't something most people are looking at. 

Your mentor has needs; try to meet them and develop a mutually beneficial relationship.A mentor can benefit your growth, but it's not as simple as one post on a forum full of strangers.

We like this idea, and we currently rent, so it wouldn't be hard to move in 6 months, but how beneficial is house hacking on a project like this?

ETF doesn't offer much advantage over mutual fund for retirement account in my opinion, as you don't want to trade often or cash out (unless for emergency).In general it's recommended to contribute 10-15% of income to retirement account.

** If you’ve engaged in rent-to-own or lease option transactions, what tips do you have for making sure it’s a beneficial arrangement?

@James Sedano A cost segregation study could definitely be beneficial in your situation.