Can I increase rent PRIOR to lease signing? - repairs needed

[Molly Turner]

Can I increase the rent from what was advertised, PRIOR to a lease signing and with full disclosure? I discovered an expensive needed repair, after I showed it to an interested party.  They have not received a copy of the blank lease from me yet and they have not paid an application fee or put any money down.  They did see the original rent payment on the ad and it was discussed during the showing.  Has anyone had this situation? Thoughts?   

[Wayne Brooks]

I assume you can, but realize, a unit is assumed to be in working order, your costs have nothing to do with market rent.