Please finish Question $2$ all parts.

On $1$ April $2018,$ Mr Lee acquired a residential property in Shatin $("$Property$").$ On $15$ June $2018,$ Mr Lee leased the Property to Ms Cheung based on a written lease agreement with the following terms:

$\backslash$table$[[(1)$ Term of lease,$3$ years from $1$ July $2018,],[(2)$ Monthly rent,HK $$28,000$ payable in advance at the beginning of each month,$],[(3),$Refundable deposit,HK $$56,000$ payable on $1$ July $2018],[(4),$Rates,HK $$4,800$ per quarter $($after rates concession, if any$)$ payable by Mr Lee$],[(5),$Management fees,HK $$1,500$ per month payable by Mr Lee$]]$

Ms Cheung failed to pay rent starting from $1$ December $2020,$ and Mr Lee subsequently discovered that Ms Cheung had left Hong Kong on $1$ May $2021.$ Mr Lee forfeited the deposit placed by Ms Cheung.

Mr Lee spent HK $$200,000$ to decorate the Property after Ms Cheung had moved out of the Property.

On $15$ August $2021,$ Mr Lee leased the Property to Ms Wong based on a written lease agreement with the following terms:

$\backslash$table$[[(1)$ Term of lease,$2$ years from $1$ September $2021,],[(2),$Monthly rent,HK $$30,000$ payable in advance at the beginning of each month$],[(3),$Rent$-$free period,$1$ month from $1$ September $2021],[(4),$Premium,HK $$90,000$ payable on $1$ September $2021],[(5)$ Refundable deposit,HK $$60,000$ payable on $1$ September $2021,],[(6),$Rates,HK $$5,400$ per quarter $($after rates concession, if any$)$ payable by tenant$],[(7),$Management fees,HK $$1,600$ per month payable by Mr Lee$]]$

On $15$ December $2022,$ Mr Lee received a cheque in the amount of $HK$$$40,000$ from Ms Cheung.

Required:

$($a$)$ Compute the property tax payable by Mr Lee for the years of assessment $2021/22$ and $2022/23.$ Ignore provisional tax.

$(12$ marks$)$

$($b$)$ In respect of the lease of the Property by Mr Lee to Ms Wong, identify the document$($s$)$ to be stamped under the Stamp Duty Ordinance, and compute the amount of stamp duty payable $($if any$).$

$(3$ marks$)$