Can someone provide me with some financing ideas other than the two that I just mentioned that would enable the other heir to receive cash from their portion of the equity based on its current assessed value and allow me to take ownership of the home, subsequently remodel it, and rent it?

If he has legitimate self employment activity he may be eligible to create a solo 401(k) which is superior in many ways to sdira.  

While it is possible to structure things like this for legitimate gifts, your intent is not there since you plan on paying the money back in 2 weeks.

We have to charge fees that enable us to earn a living, otherwise we will move on to another profession.Agents can go for months without earning a dime.

It's definitely a legitimate concern, especially for those who own a lot of property and are getting calls like this regularly. 

This one sale will enable us to buy 5 additional cash flowing houses, and expanding our cash flow.  

If I go to my property for a legitimate reason  then its primarily business. 

Nearby is a tasteful power switch to enable the purchaser to switch it on and off.

For most that's not a legitimate investment, and they define it as speculation.

In these cities, your financial resources will go a long way enabling you to assemble a diverse multifamily portfolio and initiate a steady stream of income.