I don't personally think it would set a bad precedent in this situation as long as everything else is good.

As long as you have worked 6 months at your current job, and you have 2 years of history total, you might be able to make it work. 

Getting 2 appliances in a row that are new and don't work properly is just bad luck, but overall yes appliances do not last as long as they used to.

There are a few sharks as well, but as long as you're smart they're pretty easy to spot.First piece of advice when investing in Baltimore is to really know your comps - just a couple of blocks can sometimes make a huge difference in ARV/rent.

As long as you weren't planning to use it yourself to ski Crested Butte...I'd sell.  90 days isn't tenable and 30+ day rentals will demand a far lower rate.Take that money as a huge win and find a new property!

As long as you are going to keep this property and not sell it,  a fixed 30 year loan would be better than HELOC. 

As long as you maintain 75% LTV a bank should be amenable to it. 

Cities cannot make you add parking if you convert an existing garage under the CA new ADU laws so long as you meet public transit in area requirements so you should be able to convert your detached garage to ADU without having to build covered parking.

i wouldnt mind a lower one as long as i have some sort of cash flow to come in, in case of repairs 

If you end up needing those dollars, you can always pull them back out of the line of credit, but as long as you don't need those dollars, they're going to pay down your principal and interest costs.People use this strategy to pay off houses in as little as three years, and it really works, but if you simply want to use it to build up equity for an investment purchase—which is how I use mine—you can withdraw a huge chunk when a good property comes along and use the equity in your home to buy an investment.