But personally I don’t want to live there ( I haven’t seen much of the area but I would prefer to live In medfod, Malden, Somerville, Newton,Brighton area) I know that the properties in Lowell are much cheaper compared to the places where I prefer to live.

As I said, this is based on my personal preferences, and some of the stuff above many not bother you.

Preferably a MFH with one side has 2, preferably 3/4 beds + 2 full baths with garage (we have an EV that needs to get charged everyday)Or a SFH with 3/4 beds 2 full baths w/ at least 1 car garage.Then we will live in this "livable rental" for couple years, then purchase our "forever home".

I prefer a GC over independent trade contractors but that will also help.

If you're at the beginning of your RE journey, then 1) determine how much time you can/want to devote to your RE venture.Here're a few articles to help you decide on that:https://www.biggerpockets.com/member-blogs/10850/8...https://www.biggerpockets.com/member-blogs/10850/7...2) then within the area you selected in #1, pick a niche that you believe will work best for you and personally determined to make it a success. 

What do you prefer, doing a cash out refinance or HELOC on primary residence for down payment of rental property?  

It also allows you to specialize in a niche most real estate investors don't pursue.

House #2 will have much less capital gains on it, so if I have to pay capital gains I'd prefer to pay it on that home.Thanks in advance for help-

A sump pump only removes water after it has gotten inside...my preference would be to keep it from getting inside.

(It's not always as easy as "just create another LLC", sometimes due to time/logistical limitations and sometimes due to the extra ongoing expense & complexity of another entity.)These days, I actually think I prefer LLC names as generic and boring as possible, so they don't stand out and aren't easy to Google - a kind of pseudo-anonymity.