whenever I fill out a form online I get inundated by a bunch of spam with nothing tangible. 

There are a few ways to tackle this:  if you can cheat out some space, it is relatively easy to run hot/cold lines. 

with email marketing for example, a good open rate is 20%. with text, the average open rate is 90% or higher. everyone reads every text they get. that extra 10% is due to some phone carriers having a “spam text” folder. i personally have never seen this, but i do see many of my texts not being delivered due to the phone carriers’ spam folders. anywho, people rarely answer the phone, and almost always listen to voicemails. so i feel texts & voicemail drops would probably have about the same efficacy. texts might beat VM drops because they could be perceived to be more authentic (depending on how they’re written), meaning more responses. you’d also have to consider your demographic. will you know that the #s on the list are cell phones vs landlines?

@Ben Hosseinzadeh I agree with @Chris Seveney this is not a first time project to tackle. 

As @Braden Smith said there is legislation everywhere, and lawsuits, over non-compliant spam texting.

@Zachary Inman Atomic Habits is a great book in general for improving how you tackle change in life.

If I tackle a major reno 2 units can be two bedroom, they have the space. 

That's good that you found a great team around you to tackle this new environment. 

You have some good advice here and some spam, but most are missing the most important thing for house hackers right now if they are using an FHA loan - it's vacancy.

Afterwards you'll know if you feel confident enough to tackle that job yourself on the next project.