When they say "Broker's license" that means you have to operate under a broker, not that you have to be a broker yourself.I think the requirements are spelled out by the Dept. of Licensing and Regulatory Affairs.

I would consult either the attorney general's office in your state or the Department of Consumer Affairs to better understand what your rights are as a landlord as well as those of your (or soon to be ) tenants. 

Found the below link for MI dept of licensing and regulatory affairs (LARA).  

They are older and have begun to put their affairs in order and have called a family meeting to explain how things will be divided among myself and 4 other siblings. 

Just got a whisper in the wind today that the court is giving us 3 months to get affairs in order and try to straighten it up there is a crazy lady living in one of our office trashing the place!

Frugel is the word and save all she can (within the limits of her new life style, I think you get what I'm saying)...I'd suggest you stay out of the family affairs, as much as you might want to get involved, stand back and let your parents do this on their own.

She has also just went through the death of her husband and I can understand her not dealing with his business affairs.

VA loans backed by the Department of Veterans Affairs even allow veteran borrowers to obtain 100% financing on a home.According to the Consumer Financial Protection Bureau (CFPB), before shopping for a mortgage a borrowers should:Check their credit reportAssess how their spending habits will change with a mortgageBudget for additional or changed expensesDetermine how much of a down payment is neededDecide on a purchase price of a homeCreate a loan application package with personal and financial information including pay stubs, W-2 forms, copies of recent tax returns, bank statements, and proof of identity2.

You talk about the leases but do Not specify if they are month to month, or yearly with the agreement of rent increases.You can Google "California rent increase law" to get the California Department of Consumer Affairs instructions on rent increases. 

It’s possible to organize your affairs over a number of years so that you are able to place $10 million beyond the grasp of creditors, or judgements.