Just ask a lender if you can do the project as tenants in common with 3/4 and 1/4 ownership with you being a non-occupant co-borrower as @Joseph Chiofalo suggests. 

Any phrases such as "finished basement or attic", "in-law suite/arrangement", "seller nor listing agent can confirm the legality of the basement/attic unit" are a few common ones.

Quote from @Brendan M Hornung: Software is a common question on BiggerPockets.

Truthfully, I wish i could say all this is "incredibly naive" but in fact it's all too common "naive".

there are companies that do that they run around buying peoples redemption rights mainly in states where the time for redemption is very long and it ties up the ivnestors so to pay 5k or so for the redemption rights saves them months.. very common in Oregon and Washington for example. 

Common substances tested include petroleum, hydrocarbons, solvents, and sometimes asbestos and mold.

Additionally, I am willing to live in one of the units for a year.My long-term vision is to buy everyone out and eventually own the property entirely.What are some common deal structures I can explore based on my contributions and end goal?

@Tyler Schmick  Tracy was simply listing four common management software used by bigger portfolios.  

Based on the provided real estate data for San Jose, CA 95111, there appears to be a seasonal pattern in home sales activity and prices:Peak Season (Spring/Summer)The data shows a higher number of home sales occurring in the spring and summer months, particularly from March through August.Home prices also tend to be higher during this peak selling season, likely due to increased buyer demand.Off-Peak Season (Fall/Winter)There are noticeably fewer home sales recorded in the fall and winter months, from around September through February.Home prices also tend to be somewhat lower during this off-peak period compared to the spring/summer months.This seasonal pattern is quite common in real estate markets, driven by factors such as:Warmer weather and longer days make it more convenient for buyers to go house hunting in spring/summer.Many families prefer to move during the summer when children are out of school.The spring market is fueled by annual bonuses/tax refunds providing down payment funds.Sellers often list their homes in spring to take advantage of the higher buyer demand.However, it's important to note that this is just a general observed trend.

How common is any form of apprenticeship under an experienced investor?