This means you must live in one of the units of the multifamily property you are buying.

Please keep us updated when you do.

Our rental is paid for and has rental income of $2200 month and our primary has a mortgage of $1800 so we are currently living for free basically.we have a credit line on our rental for $275k and recently got a letter from our mortgage company offering a cash out refi on our primary of approx $300k and still be able to keep our current interest rate on the remaining balance of the mortgage which is mid 3 %.We are trying to grow our rentals and struggling to figure out the best way to do that.

We tried to get info on the lender to ask directly but they wouldn't give it to us.I would have thought this would be a relatively quick process to do a credit check, check debt to income, employer verification, etc.current loan's interest rate is very low so they definitely haven't refinanced anytime recently.Additionally, having never assumed a loan before, anything I should keep an eye out for that might cause a hiccup? 

I have been running some hypothetical use cases and been comparing the returns with more traditional investment assets, and there must be something that I'm doing wrong because it doesn't add up for me.Scenario 1 - 9.5% Yield vs Stock at 6%: 5 year 12k note with 9.5% Yield, this means 60 payments of 252.02 for an end valance of $15,121.2 which gives me an annualized return of 4.73%.

As soon as you get your new job, keep saving. 

What they are bringing in vs what the properties are worth likely means you could put that money in a high yield savings account, reduce the risk and probably get as much in interest as you net with the rentals.

Why do you want to keep growing?

This means designing with the size/length of all materials in mind.2 - Don't make design decisions based on what you want, or what you would live in. 

You don't want to treat a GOOD tenant in a higher quality tenant the same as an IFFY tenant in a low quality rental because you won't attract or keep good tenants that way.