what to do if the seller needs some equity

?

I’m assuming that you’re meaning, “What if the seller wants CASH for his/her equity?”
…seeing that they already have the equity, albeit perceived or
actual.

Put simply, there’s options available for you and your
seller(s):

  1. Pay them a portion of their equity up-front with SOME cash
  2. Have them hold a 2nd
  3. Agree to split whatever profit you make AFTER you have sold the property
  4. Give them nothing, and wish them the best.

…etc, etc.

It basically boils down to whatever the 2 of you agree upon and is accepted by both parties.
This is what makes dealmaking fun.

Best of luck!