Section 8 porting question - Tenant transferring his HUD voucher

[Bishoy Takla]

Hello BP, 

I have a section 8 question. One tenant is planning to move (port) his section 8 voucher to Dallas and use it to rent my 1/2 duplex. 

- Can I charge him a deposit to hold until all the paperwork is transferred successfully? What is the max amount I can charge?

- What else do I need to let him move-in while HUD is finalizing the paperwork and the lease?

- any other insight I need to know about the porting process?