Applying what you taught me above, please kindly advise whether I have applied the correct preposition for the sentences below.
1. I thought I'd just email you regarding my queries in respect of the XYZ Trust for which you were the auditor who audited this trust. [In this case the XYZ trust is the noun that determines the choice of the preposition]
2. Did we receive the details of rental expenses for all properties you owned on which you claimed as tax deductions. [in this context the verb claimed determines the preposition]
3. I have included my reasoning to increase the interest rate on the $1M loan on which I consider as a high risk loan [The $1M determines the preposition, so on the $1M loan]
4. You took $1m to purchase units in a unit trust on/for which the proceeds were used to acquire the 21 York Street property. [the $1 m loan determines the preposition, so on that $1, used to acquire the 21 York St property.
Appreciate if you could shed some light