Taxes: Must property search expenses be attached to 1 property?

[Lisa Higgins]

We own a 6-plex in an LLC. We have looked at many other properties in the last few years, but have been told that we can't write off those expenses in an "over-arching" way. Since those expenses don't really belong to the 6-plex, and we may never act on the property we are viewing, does that mean the expenses are not deductible? This doesn't seem logical to me. I'd love to know how others approach it.

Thank you!