If the second level of treasury guidance doesn't clarity this point - this is past the intent of OZ, and the industry experts (tax lawyers)  feel this will be disallowed

Should I get a lawyer?

I feel I have a strong grasp of how to fund deals, now I need to find them. before I go gungho in my search for great deals I feel the need to meet with a local lawyer.

You haven't mentioned where the property is but you should speak to an expert in that local market (property manager, lawyer) on what steps you need to take to ensure you show the tenants the door legally and efficiently.Good luck!

Her reticence in paying you may stem from being unaware, not some nefarious intent to live free.I'd have my lawyer send a letter to all tenants of the property, informing them of the change in ownership and to whom the rent should be paid and how. 

If I'm lawyering up because I'm angry or feel wronged then my time is spent fighting.

Apparently she at first said she didn't take last months rent from the tenants, then eventually went on to say she gave last months rent to her lawyer who we couldn't reach until this month who eventually said he hadn't received it.

Speak with your lawyer to get more details.  

Whether it is sent by you or a lawyer it is the same.

Tenant now says owner is responsible for the bill, lawyer, and court fees.