What are some potential structures to allocate direct expenses to the rental on primary residence property and keep the activities separate as not to pierce the veil?

How much of the structural part of the space is covered by the tenant?  

You have to be specific about what the deal is and its structure. 

CT requires an Architect (or Engineer) for projects of this nature, especially a building of this age where it's likely there's structural/framing items to address.

You should verify this with official HUD documentation or through a HUD-approved lender.Term Until 2051:The mention of the loan term extending to 2051 or until the property is sold or refinanced suggests these could be loans with a long-term structure or special conditions.

Best thing to do would be to contact a lawyer and have them help you with structuring the note.

Structural and Foundation issues can really slow things down because the municipality will get involved with all their procedures and what not what it comes to those two areas. 

However, mixed-use properties can create new issues depending on the construction and structure, access, and tenant mix.

Can you expound more on your partnership structure?

Whether it’s learning how to build a property portfolio, understanding financing options, or managing tenants effectively, having a structured approach will keep you focused.This clarity prevents you from wandering aimlessly or jumping from one strategy to another, ensuring that you stay on course toward your investing goals.5.