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Hello, my name is Richard and I will try to help you. Please remember I just report or interpret the law, so the outcome may not be what you hoped for.
In most cases condominium units like single family dwellings are not subject to rent control and there are no restrictions on rent increases. Only if your unit was previously subject to rent control under some old local ordinance dating before mid 1990s, your unit will not be subject to rent control. Sorry for the bad news but that is how I see your situation legally.
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Without rent control there is no limit on rent increases. Call the local housing authoirty and they should be able to help you. Here is a link to their website. http://www2.oaklandnet.com/Government/o/hcd/o/RentAdjustment/
Unfortunately, if your unit was built after 1995 it is not rent controlled. If it is a single family house or is a condo it is not rent controlled. Since your unit is a condo and you have no basis for believing the unit wsa ever under rent control there is no basis for believing that it is. I am sorry for the bad news but that is where I think you stand.
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