As an added bonus your P.O.

I'm now thinking that a Special Purpose Vehicle would be much more favorable especially for smaller (<$2MM) pools of money.I envision 2 options.The first option would be for equity and the fund or SPV having the shares/percentages reflect the amount invested into the LP side of a project.The next option would be for debt where the fund or SPV members gain a fixed return based on an agreed upon interest rate for money lent out to the project(s) plus a bonus payment that would come from project performance and allocated based on the amount invested.Are there any online platforms that can be recommended to set up and manage these types of funds or SPVs?

So Same thing happens if we throw a pool in Adjusted basis originally = $200k Add a pool = $250k Immediatey depreciate a pool as a year 1 land improvement w/ bonus depreciation = basis reduced by $50kSo your adjusted basis is back to $200k IN the same example above ...5 years in: $250k (orginal purchase + pool) - 19k-50k (depreciation on house and pool) = $181k adjusted basis So if you sell for that same $250k- 181k adj basis= $69k gainBut the whole thing was caused by depreciation so since you've taken 69k of depreciation your entire gain would be taxed at the higher recapture rate 

Bought a new-built fourplex last year for about $700k, if  do a cost segregation can get about $120k bonus deprecation, which can lower my tax by $10k(plus about $20k loss carry forward).  

(long time until they see the first meaningful bonus). 

With that said he is looking to invest because he receives large bonuses, causing a large tax bill.So, my question is what is the best route for us to take that will give the best tax benefit.

Washer/dryer not necessary at all, just a bonus if you have one.

Has anyone done a cost segregation on a rental property since the 100% bonus depreciation became allowable in 2018?

You can talk to a broker, they will probably tell you that you can take the 23 units by right add an additional 8 units with the density bonus and they will put it on the market for $100K a door, they dont understand development. 

They have a great product that will soon come with ZipForm and Docusign integration which will be an added bonus.