The key is to figure out what is in demand and under supplied in your area and what your particular property is suited to.

It has specifically banned STRs of secondary suites, though renting out primary residences or rooms within them is still allowed, subject to licensing fees and a nightly tax. 

I've had such bad experiences in the past with dogs in a different fully furnished short term rental where we originally allowed dogs-- swimming in a decorative pond and disconnecting the filter, killing the koi, chewing up a couch and other soft furnishings, scratching a newly installed hardwood door and ruining the finish, digging giant holes in the yard and landscaping.... thousands of dollars of damage, really, in a very short time, which is why I have a strict no pets policy, and am particularly nervous about dogs on the property.

What loan would suit the purchaseIn my early 30s, I often wished my parents had told me to buy a house at 18.

Ultimately, if you come across an MFH with a vacant unit that suits your needs for residency, it's definitely worth considering and I encourage you not to hesitate.

I've use them for over 40 years, never been sued against the trust, and of the few law suits against the property manager we never lost one.

Neither of these are well-suited for a public forum. 

Hard or private money would both suit your needs, depending on how many funds you have to contribute.

I was thinking perhaps from a legal perspective any suits would also involve the lender and thus have greater "protection." ???

So you can wait for the likely more suited boot camp or take this one recognizing that if you take the commercial MF bootcamp that there is likely to be a lot of overlap.