Should investors be spending all their time and money finding motivated sellers? Should they have sellers coming to them by way of websites and bandit signs?

The absence of actual square footage makes it difficult to check to see if the rental prices listed are accurate.

However if you are going from a 2 unit like you said and lets say the new 3 unit is bigger in square footage and has a better school district, closer to your work, etc a case can be made. 

(Homes less than 1200 square feet generally depreciate or fail to gain strongly in value, even in "stick built".Most banks do not understand manufactured home chattel lending and tend to avoid it.

Id like to close in a porch and connect another room - add square footage and then sell it because the sq ft payoff would be well worth it.  

Agencies are afraid to state square footage these days.

@Randy CoulsonWix or Square Space would be good.Wix will likely have more of what you want for bookings

Myself I have a building  background and possess journey level skill in almost all trades except maybe doing concrete work and I am also an architectural designer so I perfer properties that can be increased in value through forced appreciation and look for properties where the zoning, set back, and other requirements allow for adding square footage to a building but others perfer invest in turnkey properties already fully occupied whereas I like working with empty buildings. 

It's near my house in neighborhoods where bungalows are starting to hit 1Million.https://www.zillow.com/homedetails/302-NW-84th-St-Seattle-WA-98117/48836408_zpid/?

Is anyone looking for one in the Baltimore/Washington, DC Metro area?