Comments like this just mean you've achieved a small measure of success online.

. - "But we developed our tactics to keep cap rate >12% (honest cap at 40% expense ratio etc)..." 40% true expense ratio is excellent and difficult to achieve on a long-term basis. 

I also recommend you looking into other creative financing, as this will help you achieve your goals in your desired timeline. 

Are fellow syndicators aiming to achieve this as an average over the life of the deal or from day one of the deal?

Slow flip is achievable as well.  

By accurately and fairly breaking down the contract sum into corresponding values, the GC will be incentivized to push production on each task, trying to achieve the percentage of completion milestone when payment is due, typically at 25% increments. 

I am willing to do house hacking as well to achieve this goal.

Do you think 600 is achievable for five 2 bed, 1 baths?

That doesn't necessarily mean a paid membership here, but the point is that denigrating memberships is really just saying "I don't think what I want to achieve, or offer, is worth paying the Pro membership fee", which is about $20 per month.

Nothing says you can or should do only one or the other.As to scalability, it is true that SFR is less scalable than multifamily, but this is only a problem if you are seeking to achieve scale.