Is there a way to do this leveraging only a single LLC (through some sort of master document that keeps track) or would we need to establish a new LLC each time we want to make a new investment with different percentage splits?

Master and Commander.The officers are sitting eating dinner. 

At 19, you’ve already mastered what most people spend years figuring out—turning determination into action and action into results.

Also many of these lenders are using LOC from huge funds and they have their Marching orders all written in their master credit line agreements.

That was an applied master class. 

Adding additional bathrooms (like a master ensuite) can be a game-changer.3.

Additionally, due to limited capital and the desire to minimize risk in a new country (for us) we employed a Master Lease strategy.

The rental had ratty furniture, a record player prominently featured in the marketing but it had no speakers, missing basics items in the kitchen, lots of drunks in the concrete hallways that reverberated right into the bedroom at 2am, a strong odor of urine outside, and more.We have super hosts in this forum that have hundreds of 5-star reviews and are masters of the craft, but I look at their rentals and see they don't have any artwork on the walls, decor is basic, they do nothing to make the guest feel welcome, etc. 

Being wealthy is not just being rich.A person who has a lot of money but no time is not wealthy.A person who has a lot of money but no privacy is not wealthy.A person who has a lot of money but no relationship is not wealthy.A person who has a lot of money but no ambition is not wealthy.Being rich is easy, being wealthy is very challenging.And yes being wealthy is very worthy because to become wealthy, you need to master your life.Money is just a small part of your life.

I'm weighted towards RE but I have been buying in the public markets recently (stocks, index funds, bonds, REITs, Master Limited Partnerships, Business Development Companies).