Like any financing strategy, due diligence and proper financial planning are key to making it a successful solution for both parties. 

@Trevor Finn yes, there is a very likely chance of having to sell the house due to relocating next year.

By investing in a high-quality $109,106 renovation, we modernized the home, improved curb appeal, and upgraded key areas like the kitchen and bathrooms.

We continue to monitor events like these, just as we did during the eviction moratorium. 

Just like the asking price, just because the owner suggests one interest rate or term doesn't mean you can't offer something different. 

I would like to do something similar and was wondering on those two questions. 

Will start to investigate those areas more I’m also interested in looking into areas like Sharjah and Ajman.

-Transfer the property into an LLC – This may allow me to take ownership while potentially avoiding property tax reassessment, however this sounds like an involved process-Establish a living trust for my aunt and mother – The trust would specify that I inherit the property upon their passing and provide step up in cost basis but i'm worried that the living trust can be modified to have me removed (who knows what can happen) - My mother is somewhat volatile.I would like to live in the property and my mother will live in her second property with her husband. 

So it looks like you would need around 4-5 years to get to break even by selling those stocks and paying the tax now. 

You likely only made a down payment of 3-20% ....but you still get to write it off on the full value across 27.5 years.So 400k/27.5 = 14,000 ish a year of a write off where during the year you didn't need to incur an actual expense, no cash outflow.