I would be surprised if you have any legal grounds for forcing a sale because it appears the sister has no legal right to enter into any kind of a contract with you.  

Add to that a mentor or productivity coaching program to help you to become successful.

Seller financing can attract buyers seeking flexible financing, possibly enabling a higher sale price and transforming the $30,000 loss into a profit.

Why are people doing 1031s if the Deferred Sales Trusts is an option?

If we bought a new primary with cash at say $1 mil we could still have money to put into index funds or something.I realize it's leaving money on the table by not leveraging all of the sale into more rentals but being in California it's pretty tough to pencil out rental returns to have good cash flow.

Have them clearly state their exact fees, including extra transaction or admin fees, how they market, are they assisting you, personally, or just handing you off to less experienced agents on their team after you sign (I've seen this happen a lot), and ask their advice on if your home is ready for sale or if they'd suggest improvements. 

I have done 35 mill worth of deals , own a PM co, have 12 admins, 25 or so contractors, have purchased props from tax lien sales, sheriff auctions, short sales and more, nothing I have not done .

We also aren't sure whether it's best to openly discuss this with our lender because we don't want them to invoke the due-on-sale clause, as we have technically transferred ownership of a portion of our property to our children.

Closed on one note sale this morning and have two more final ones next week.

I'm just trying to figure out if the sales price was accurate.