It's very easy for a GC to put our task towards the bottom of the priority list.Everyone else on our team is fantastic; real estate agent, lender, and subs. 

You don't have to seek an attorney's professional opinion, but they becomes an essential piece to your team moving forward the larger your portfolio gets.

Plus investors buy the duplexes that remain as duplexes and they often don't want to over pay.I would think that a large single family with an ADU would be worth more than either a single or duplex.BP fans seem to like the small multi-family because it can bring in a larger income than a single family and they think has less risk, less maintenance. 

I would suggest getting a recommendation for a cleaning person instead of a larger company. 

On a larger scale say 100 investors a week, with the intention of building a relationship based on the quality of work they have done.

Brokers are tasked at selling so their numbers are biased.

I also always received multiple bids for larger projects. 

Also look at any restrictions on sq foot of buildings to square foot of dirt--meaning the vacant seems buildable dirt might not be as buildable as you think (sometimes upscale areas are larger lots than other areas by zoning law). 

It could be he's selling to liquidate, going into larger deals, or tired of owning homes. 

I've purchased a couple of SF rentals and used a proforma spreadsheet to visualize the long term numbers. I'm not looking at a 10 unit apartment building which requires a commercial loan - different amortization time ...