Buying my first property in the Bay Area, I almost missed a $22,000 foundation issue because the seller checked "No" on the disclosure form for structural problems.

Full disclosure I'll be co-listing these with another agent and am wondering how to best present the properties as house hacking opportunities.

If so disclosure would likely be sufficient. 

This is an unusual request so early in the process but they might be bringing it up because it has been an issue in their current or previous residence.In my experience, tenants and buyers receive a lead-based paint disclosure form at lease signing (or contract signing if purchasing). 

FHA does allow a licensed buyer‑agent to use their earned commission from the transaction to reduce their net cash to close, but this is lender‑specific and typically shows as a credit on the Closing Disclosure rather than eliminating the need to bring funds upfront.

Also check if the county requires any specific disclosures for vacant land transfers.

Legal Language is always subject to interpretation by a judge if it were to go that far.I found the disclosure an interesting point.

So before it was fine with disclosure but now it is not.

As an agent you will be bound by stricter legal and ethical standards than a non-licensed investor, especially disclosure. 

Full disclosure we already own 2 houses and rent one out after she moved in with me, but we didn't buy that house with investment intentions so we don't count that one as our first.