Hi everyone I started my own business over the last year and have been able to put aside a sizeable amount of money to contribute into either a BRRR or into a live in self managed multi-family.

So you need to sell as yourself, do the 1031 and buy as yourself, and then later contribute that property to the new LLC in exchange for membership interest. 

My question to you is how would I go about contributing the 50% of my portion?

So we contributed the extra capital as a second mortgage.  

We also both contribute to 401k and a roth IRA, & have 2 investment properties that we bought in December 2019 and October 2020, with 2021 being a big scale up year for us. 

Split profit depending on how much money and work each party contributes. 

I would express yourself and figure out why he's only valuing your contributions at 8%.

I contribute ~$15k and my company matches 8% into my 401k program. 

If you contributed 100% of downpayment and handle everything on your own (also, pay for everything down the road), then you are entitled to 100% of profits and I don't think your parents should even mention this project in their tax returns.

My friend and business partner is able to secure financing, so we would contribute a cash injection and he would be able to get financing for whatever we could not pay with cash.