Replacing appliances just a cost of doing business.

You can maybe save some cash and just get a single line virtual dialer like Vonage Business or Ring Central (look for month to month only), you don't need a massive power dialer right off the bat (another $150-$250 per month). 

Someone with experience with visa holders being passive business owner and investor.

I quit my w2 cause I hit the .01% of success in it-- created small businesses then failed/succeeded on those.

Hi, I am a 37 year old half English, half Spanish guy living in Madrid, Spain and I have an unrelated business (Speciality coffee roasting) but have really got interested in investing in real estate as a side business and to help build long term wealth.

You're income certainly isn't "normal" and some banks might shy away but this is a personal business and if you have a track record, I think you can find a bank to say yes.

You need to do a line item business analysis. 

IDKCurrently considering opening a FB business account and posting my rentals as a sponsored listing with an FB allowed link to my property manager's application webpage. 

I handle most of the forms and simpler legal tasks myself in my own REI business.  

for that, i use reihub (the extension of rentredi). i use quickbooks for my other business but my RE portfolio doesn't require something as robust.