I agree that it may not be beneficial for taxes, but where it does benefit is that you can start building a credit line with your entity’s name.

Hi all, If I'm considering purchasing a duplex where one unit is a Section 8, is there any additional documentation/paperwork beyond the lease that I should ask to review when conducting my due diligence/property analysis?

this is why CA went to police style thumb prints on Notarized documents that transfer title. 

.- Partner is acting as the bank and I'm going to pay them "mortgage" payments plus interestWhat documents do we need to write up?

But that being said, there are many accountants out there who will let you do it as long as it is very tightly documented as an arms length business like transaction.

At closing you are going to document in writing and a lie on a government backed mortgage isn't okay today.

This is to document and ensure deductions are not for pre-existing damages.4.

Also you and your attorney should read and completely understand all of the terms of the note and mortgage agreement and closing documents before closing.

Again, make sure you do all 3 forms of communication and document EVERYTHING! 

You will also need to notify the county property appraiser that you are still the beneficial owner to make sure that they won't reset the cap on the assessed value of the property for your property taxes.Regarding the note, as you are not changing the name of the mortagee, there is no transfer of the note and there should not be any doc stamp.Also, avoid the quit claim deed, use a warranty or special warranty deed instead.