You should have titled the property in mom's name, with a mortgage and an option to purchase it from her for the $75,000 at any time to protect you, if something happened to mom.

I have already created a single member LLC in my name (husband) and the attorney said that it would be fine to proceed this way and that it would allow me to self-manage and maintain liability protection.

They are trying to protect you from yourself and your efforts to over leverage yourself. because that's how you'd get to your next post of when the house of cards starts falling down and crushing you under it all. 

I would like to solicit feedback from both consumers and the pros on the feasibiltiy of buying a nice house near the beach near retail (I'm thinking NJ), then flipping it as quarter-share fractional interests at a premium.

A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.

The legal method is to file for an eviction and slog through the time-consuming court process.

Two things, the first is a protect you down the line from them saying the home was not habitable and secondly, every time they ask, I would just keep referring back to my prior email and use that as a response

If you don't have the money in your hands on day 46, I would call them and demand they transfer the funds immediately to the new PM or you will file a complaint with the state: https://www.dre.ca.gov/consumers/filecomplaint.htmlThat should motivate them to move immediately.

Now I have to register every year with the "housing protection department" because my unit is "available for rent".

Here's another perspective: Insurance is for liability protection.