Thanks for writing back...great to hear from you!
You're quite welcome...my pleasure entirely to be of help!
Sure, logical questions, and I'm glad to expound. The following information applies assuming you don't have a written contract in place. If you do have one, its provisions control. I'll take your additional questions in the order presented to try and stay organized, as follow:
(1) "What about any amount still in question due to adjustments, lab bills, and uncollected amounts. I am out of town without access to all of the information."
40 T.A.C. § 821.26(d) provides in pertinent part that: "[d]raws against commissions or bonuses may be recovered from the current or any subsequent pay period
until fully reconciled." This is a highly "employer friendly" provision, meaning it could be a good while until everything is reconciled (insurance, billing) so the dentist gets his payout.
(2) "Also if he came to the office on Mon. the 11th to get his personal items, is that considered a verbal resignation?"
Yes, I would say so. Texas law demands no set "magic words", meaning one need not literally say "I resign". It comes down to a plain meaning and reasonable interpretation of the circumstances. He retrieved his personal property, showing an intent to absent himself from the workplace, so that's a voluntary quit in my book (and based on my experience the Texas Workforce Commission would agree).
(3) "Would It need to be the full amount or divided on 15th and 1st of April per normal procedure."
Nothing special is required, just follow your usual procedure (and note as outlined above that you do have a right to reconcile in the case of commissions and/or bonuses).
Hope that helps some more and that all goes smoothly!
Kind regards, Ben