POHs inherently contribute to elevated expense ratios due to their operational demands, and this effect is magnified when the number of homes is limited, as fixed costs are distributed across fewer units.

@Kevin Hoover, with certain types of entities it is possible to contribute property to and distribute property from that entity without triggering a tax event. 

A great place to both learn and contribute back to those just starting out.....

Knowing what I know now, I will never contribute to Roth; I will only make pre-tax contributions, get maximum tax deductions, invest, and then be selective about which asset I want to convert (such as the one above).  

there was a group of 8 of us that pooled money in a Cabal myself and one other were the main money guys the others put in smaller amounts and when we won one.. we would divy up interest prorata to the amount contributed.. this kept those guys from competing against us and for sure we bid up newbies .. really the only ones that would beat us were those that wanted to live in the house and would just go almost all the way to retail or above .. or someone bidding on a second thinking it was a first and no one is going to help you if you dont know what your doing.. this is a very caveat emptar bizz.

Contributing to a Solo 401(k) or SEP-IRA can reduce taxable income, and Section 179 or bonus depreciation lets you deduct equipment costs upfront.

Russel, while I don’t always agree with you, I respect your opinions and your contributions to BP.  

My Roth were all contributions, no conversions, but I can say I have seen many convert from pre-tax to Roth  

How much time / cash / other are each individual expected to contribute?

The local investors will need to know their local real estate and rental markets and depending on the infrastructure the investor has in place or is willing and able to build, that will dictate how much time and effort they would need to contribute.