One of the partners is a software developer and has everything automated in terms of calculating demand and discount rates, as well as emailing previous renters.

Rob Perry, the Software Developer, is excited to have you as a part of bigger pockets!

(I know all this b/c I used to work at a Real Estate software company which syndicated listings) That being said, Realtor.com seems to have access to a large database with accurate information, as Listhub (their syndication) has RETS feeds with most MLSs in the US. 

Get an LLC, get certified to run background and credit, learn accounting software, set up a system for collecting rent....etc.Also, read Tenant Screening: The Ultimate Guide by  Brandon Turner.

I bought my MacBook yesterday and was wondering what are the best apps or software for them?

This is usually a fairly standard feature in forum software, but I can't find it here.

I saw a strategy that is to buy a AB list, yellow letter them, and get phone capture software. 

I've asked for them to be printed landscape or something where I can see the full descripiton, but the PM claims the software won't allow it.That PM sounds great!

I work as a "consultant" (a formal term for overworked software developer with decent communication skills) for a marketing services company in Boston.Experience: I have limited "accidental" experience with a condo I purchased in 2007 in East Boston as my primary residence which I've been renting out for ~2 years now.

If i however had multiple properties i would probably go to a property management software system, that allowed for electronic payment.