They include cell-based meter communication in their monthly fee which, based on the features that I want, looks like it will cost just under $18/month for my triplex.

Put up your own rental ad on postlets dot com , get a google voice number to bounce to your cell phone, us the google voice number in your ads.  

And then there are the ones that are on their cell phones, and you think they are talking to you when they are really talking to someone else.

Cell phone camera take pretty good pictures these days. 

I don't think you will find any servicer who would board this loan without concerns for being fined for compliance issues.I would recommend you just continue to cell service until it's paid down and keep it simple. 

ICANN requires that your information is up to date or they can terminate your domain.Therefore, set up a virtual number telling callers that the line exists for ICANN purposes only, and that the line that it forwards to is listed on the national Do Not Call list, and that they can be fined $40,650 by the FTC for non-compliance.That gets them off your back, and if you get loads of calls on your cell from spammers, install TrueCaller to automatically reject calls from known spammers.MODS, PLEASE NOTE: This message is not a solicitation, and I do not get any kickbacks of any kind for stating what software I'm using.

I was wonder what's the best source for getting a hold of cell phone numbers if I already have a list of prospects for lead generation?

In fact, the properties on either side of the house are commercial - one a house that was converted to a nursery school some years ago, and on the other side, a former gas station that is now major wireless carrier's cell phone store. 

Because your walls are sealed you will need to use an open cell foam. 

Commercial property being used as a cell phone business.  4 years left on lease at $2000/month rent.