It all depends on what is going to give you guys a greater return in the long run and be better in time allocation.

I didn’t know that, but now I understand the risk better. 

(Someone mentioned 5, that's not very many if you're just learning/ But five woudl be better than none).

Way better than that Roofstock PR guy who left Roofstock recently.

Overall it’s harder, but probably worth the effort to get better returns.

So, you may be able to get your money back at least plus some and position yourself better. 

Short term my credit score did take a hit, but once the promotional transfers were paid off, my score jumped higher than it was before.These days, the "pure" zero percent transfers don't seem to be around anymore as they typically charge a 3-5% balance transfer fee as part of the promotion, but this is still better than current HELOC rates.

I can see how starting with a 4-plex could provide better returns and learning opportunities without an overwhelming jump in complexity.

I have a much better mentor succuss than you seem to be experiencing. 

I think the numbers work better for a refinance than for a sale.