It depends on a variety of factors. 

You will get A LOT of appointments by sending A LOT of hard target mailers (like the ones that say 5th notice and such, drive return calls), but it's a lot for a little.

Considering all the factors in today's real estate market, how would you guys recommend investing this money? 

They don't even have two-factor authentication (e.g., SMS code on login), or at least don't enforce it for me since I chose to signup using Google.

Drive around in the parts of town that you want to invest in and see if there are any bandit signs.

A standalone ADU is almost always going to cost more than doing an addition, so the value added or cash flow increases will have to justify each.I work with a team of investors who will buy SFR homes then build a new ADU on the lot and add a separate drive way and meters for utilities in North Texas. 

Assorted things.Realistically, on a triplex that's not fully rehabbed, without assuming tenant damages I'd be factoring in roof, flooring, HVAC at minimum on nothing more than a 10 year cycle (5 is safer).

Most guests are willing to provide feedback, especially given the upfront touches/relationship we try and drive initially. 

Will you be able to spot an issue by doing a drive by every couple of weeks.I'm challenging you Brian to get of the fear of "out of state".

- How do you factor in the costs of rezoning or obtaining permits, if necessary?