How Much To Pay For Due Diligence?

[Slocomb Reed]

Hey BP Community,

I bought my first 5+ unit properties in 2019 and now that I'm neck-deep in them, now I'm looking back on the process and trying to improve.

I'm very familiar with buying and selling 1-4 unit rental properties and the due diligence involved in making good purchasing decisions with them. But as I get into larger properties (my current largest is 24 units), it seems like the game changes and I need to be doing different things than I was with my duplexes and quads.

How do you do your due diligence for larger multifamily properties? How much should I expect to spend, can it be factored in relation to purchase price or unit count? And how long should I expect it to take?