You're 4x our size, so always looking to learn! 

I have personally installed a medium sized system on an Off-Grid vaction home I have and it is a real life-saver.

I'd recommend getting multiple quotes from service providers to see what pricing is going to look like per square footage.Without too much information provided and depending on the size of your home it could be anywhere from $5,000-$15,000+

I know long time right but I would go to real estate events, REIA meetings so on and so forth, but they wouldn't give you all the information needed only bite sizes so you could purchase their costly programs.

I agree with @Jonathan Greene in terms of having a specific buy box - size, condition, and type of properties you wish to focus on.

Are you printing standard envelopes #10 etc or do you print any heavier weight or custom size envelopes?

They don't care about the cash-flow, The write-off's are profitable and there looking at the out-sized equitable gains. 

Felt like I was speaking with a virtual assistant backed by AI.He estimated my re-roof would be half the size at double the rate quotes I got from everybody else... truly amateur hour for somebody that claimed to have done hundreds of these.I also was never able to find more than 5 property records tied to his name or to related LLCs.

I'd also factor in your market size.

Keep yours clean, simple, and easy to read without using 30px text or humongous font size.