Or with alternative options?

What is the flooring material?

>  Some LP want cash>  Some want alternative real estate>  Some want individual properties currently within the partnership. 

Alternatively, consider bridge loans, HELOCs, or post-purchase refinancing to preserve liquidity.

And alternating Fridays 11am-1pm. 

Alternatively, once you have a full time job (or an employment contract), you should be able to qualify for a loan and utilize a Down Payment Assistance program.

How are they sourcing materials?  

The fire prevention policies were different, more aggressive, so far less imperative reasons to sway away from a then amply supplied and I imagine price adjusted material of shake vs fire resilient material. 

Alternatively, your sibling might use a 1031 exchange to defer taxes by reinvesting in like-kind properties, though this doesn't directly fund a primary residence.Other ideas include leveraging a HELOC on the rental properties for the down payment, taking out a 401(k) loan, structuring an owner-financed agreement, or a lease-to-own arrangement.

yes in 2020 I had to find an alternative due to Covid.