Check out this table: https://www.municode.com/library/ca/oakland/codes/...This is what you're looking for: https://www.screencast.com/t/Xkyp3OZWkI Oakland, for a building with 3 units or more you need to have a lot sized at 7,500 sq ft.  --- From the zoning code it says, an RM-2 zoned lot can have "1 unit per 2,500 sf. of lot area"If you don't meet that lot size requirement you'll need to make a request for a variance, then post notice about the desired change in front of the building.

Which size of home is typically perform best on a cost benefit analysis?

@Bradley Buxton makes a very good point to make sure to do your due diligence as you won't be an owner occupant like your in-laws.Last bit of advice: Because this is a friendly deal, you want to take your time to make sure you structure it in a way that maximizes tax and cashflow benefits for both parties. 

This is the recording of an "affidavit of facts related to title" under Ohio Revised Code Section 5301.252.

What zip code is this property in and how many Bedrooms?

Always start the eviction process as soon as you're able to by law (not sure what Landlord Tenant code is in your state)  You can always cancel if they catch up if you want to keep them. 

I think you would benefit from researching other markets with the capital you have etc.

The benefit to this option, however, is that you are able to hold the property in an LLC orCorp and you will not be limited by your personal DTI. 

I believe that if you only build to code, congratulations you just got a D-, because that's what code is, the bare minimum acceptable. 

More like a 101 of taxation: you had a reserve of losses -> it helps when you have profits.And a tax geek addendum:I also do not see a direct link to cost segregation benefits here.