I would also pay by activity not by the hour.  

Financing OptionsParent Loan Options: Consider home equity loans, investment property mortgages, or co-signing a loan.Tax Implications: Speak with a financial advisor about potential deductions and capital gains.Rental Income Potential: Explore the option of renting out extra rooms to offset costs.5.

Ron Fossum, Norada Capital Management’s cleverly concealed CFO, was barred by the SEC in 2018 for similar fraudulent activities to those he appears to be engaging in now at Norada Capital Management.3.

Leverage Legal PressureThe PM is actively obstructing the transition by withholding documents and communication.

Then rent the bigger home out using a property manager, allowing her to possibly cash flow and maintain that asset and let it continue to grow in value.Encourage her to consult with a CPA or tax attorney to explore the best strategy tailored to her situation.

Because you are not changing the tax return that reports the activity of the property.But... the IRS holds the position that Husband/wife LLCs can only be disregarded in community property states. 

Quote from @Allen Masry: Quote from @Chris Seveney: Do you want to be active or passive ?

We're exploring creative ways to provide him with the cash needed for the down payment while avoiding triggering a taxable event.One strategy we're considering is purchasing his future primary residence ourselves, making the mortgage payments, and then, once we've built enough equity—comparable to the appraised value of his rental properties—transferring the title to him as a form of exchange.What are your thoughts on this approach?

Won't be really actively looking until late March or April. 

@Brian Burke  one big variable owning that many homes in Tornado and convective activity central is not if but when 300 of your houses get hit with a massive hail storm.. and you have to pay your deductible to replace all those roofs  LOL and if you have that kind of portfolio you usually go for high deductible like 5k... that right there could wipe you out.