Wholesaling a probate

[James Polk]

I have a potential probate deal in Houston. The customer needs to probate her father's house and has been paying the taxes since 2008. There are 2 other out of state siblings that may have a claim. The father's will says to leave it to her but the only witness to the will may be dead.

Should i get this deal under contract with the customer now or wait till i help her do the probate?