Again, folks who understand the time value of money will opt for much better ways to allocate their money. 

We just need to make sure the contract is carefully drafted so it is clear who is paying for what, allocation of risks, profit sharing, etc.

I made a 5% down payment on the house, and another 5% down payment was allocated towards the rehab expenses.

Make sensible financial decisions by allocating funds for unforeseen fees, insurance, property taxes, upkeep, and mortgage payments.

You can arbitrarily allocate ownership % any way you want on the purchase. 

RUBS is a method used to allocate utility costs in multifamily residential properties when there aren't separate meters. 

After you eliminate all personal debt besides your mortgage & max out retirement accounts & have a healthy savings account, you need to set aside downpayment + reserves to buy 1 house every 2-3 years and allocate a % to equities & private debt offerings as the rest.

Having met with some of the largest BFR capital allocators and aggregators in March in Nashville and last week in Miami, I can tell you many people are doing (and speaking of) BFR differently. 

One variable you might consider is allocating more to the down payment, perhaps up to 30%.

It sounds like your salary, and your expected bonus, will be the foundation for your future investments, so make sure you calculate how much you can comfortably allocate towards real estate investments without straining your finances.