Can one contribute 100% of their earned income up to the 55k limit? 

Perhaps as an alternative you partner with your flipper friend where you contribute the cash and get a split of the profits in return. 

I like to contribute as much as I can tax differed to the retirement accounts like solo 401k, IRA etc.

Can I ask you both what your strengths are and how they contribute to your success? 

@Mark Sullivan tag me if you do, I’m in the tech field and would love to contribute as well.

@James Miller How does vacancy contribute to a tax  loss (unless we are talking about actual vacancies and not money put aside)I was asking about money being put aside for vacancy, Capex and such, which as far as I know would be taxable.

Here some interesting info and numbers about the project.Acquired: Feb 2018Rehab - 2 - 3 months.Listed - May 2018Sold - Sep 2018Purchased - $115,000Financed - $110kRehab - $63k (investor contributoin.Sale Price: $224,900 with seller contribution $6kAfter all expenses Final Profit - $21k  - 33% Highlights - Removed big pool and created big back yard, did major foundation repair to get to tolerance level, removed walls to make the kitchen open, all new flooring, new roof, new appliances and whole shebang. 

The idea was that direct material and labor would be covered and any gross profit would contribute something to cover the overhead.

I intend to purchase a multi family investment property and I have several individuals who want to contribute  to the capital necessary to acquire a property.

I will be living/contributing to the mortgage for the next 4 years.