My contract with my property management company is up, does that mean my tenant lease becomes invalid as well?

They are just clerical errors and do not relieve you of your obligations. If you refuse to sign a new or corrected lease if it is tendered to you, then the landlord can start eviction procedures. The lease is an instrument that protects you from rent increases for a set period of time, so it is in your best interest to sign it if you plan on staying there.

I can't see any agency with jurisdiction on this matter calling a lease invalid because your wife's name is misspelled or crossed out more than 3 times.

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