Refunding excess after repairs back to the tenant

Q: A landlord makes an estimate of costs for effecting repairs to damages caused by a tenant on his property. Upon receipt of the claim from the landlord, the tenant makes payment without question. Subsequently, the landlord effects repairs to all the damage but the total cost turns out to be
much less that what the landlord had billed the tenant. Is the landlord obliged to refund the tenant the excess recovered?

Joining the jamaat late

Q:

  1. If the Imam is in or has just gone in to Ruku and one joins the Jamat, do you have to drop the hands to the side and stand a few seconds after saying Allahu Akbar or can one just raise the hands, say Allahu Akbar and go straight in to Ruku?
  2. If one joins the Jamat late and before finishing reciting Attihiyyat up until Abdoohoo Wa Rasoolooh, the Imam does Salam, does the person complete the recitation of Attihiyyat or does he stand up immediately to complete the missed rakats?

Sajdah-e-Tilaawat

Q:

  1. Does Sajdah Tilawat have to be commenced from a standing position or can it be done straight from a sitting position?
  2. When completing the Sajdah Tilwat does one have to stand up after the Sajdah or is it ok to complete the Sajdah by returning to the sitting position?