Seattle area investment strategy question

[Bhakti Khandagale]

We are currently looking to purchasing our first home in the Greater Seattle area. There are two strategies we are considering - 1) Zoned duplex/triplex 2) Single Family Home with Mother-in-law suite. With option 1), cashflow may be greater but appreciation will be lower, for 2) appreciation may be higher even though cashflow is lower. Which of the two is a better strategy in this market for building long term wealth?