I would not go through the cost and pain of extracting every dollar of equity. 

While I would rent it out as much as possible, husband would want us to block out 2-5 days/month there. 

If your low income tenants are a pain to manage, maybe trade into better neighborhoods or into commercial, outsource to a PM, so many options.

They have grown tremendously in the 3+ years I've worked with them, and at times there have been growing pains, but the trend has always been towards improved service / better systems over time. 

Box gutters can be a pain (and expensive) to repair or replace.I have mentioned this before: the newest property I have ever owned (flip, rental or personal residence) was built in 1960.  

The pains and the successes!

We definitely had some growing pains at first, but once we got decent tenants in place, we now have very few issues.

We had zero regulation over STRs here for a few years when Airbnb first started back in the day, and truthfully it was bad: whole blocks of downtown were basically hotels for a little while there and it started to feel more like a commercial district than residential.

I dont have the full purchase price of this 4plex to invest though, so I would have to finance half to 2/3 which seems like a stumbling block. i can still make the numbers work, but at a much lesser monthly profit i suppose. i also dont have the w2 income to support 2 mortgages (counting the one i have on my house), so i assume any bank would have to count the existing leases towards my income which i understand is possibleI guess I was wondering about advice, or red flags, anything, on this specific deal.

We did this for our out of country investors back in the day and as soon as word got out, they shut them all down due to the Patriot Act...Was a huge pain in the A$$.Doesn't the account holder have to show up in person otherwise they aren't eligible due to the Patroit Act?