If you build your investor network while working on wholesaling skills, when you find a real deal you can sell it for a profit.

Do you know if I can sell my residence after using SB9 to split the lot?  

Hard to give good advice without more info, but since You are single no kids it's hard to beat buying a single family fixer upper and living in it for two years and then selling for tax free profits....I'm a big fan of Waltham these days $.02 

I will suggest that a seminar that sells training materials only would not have helped me. 

Of course "hoping" rates will come down is not a sound strategy so finding a way to assume a loan that already took advantage of low rates is a great option.If you were starting over and targeted a large SFH, would you try to maintain the property in a way that would still attract regular homebuyers (not investors) if you needed to sell?

I FOUND THIS DEAL THROUGH WORD OF MOUTH I WAS TELLING DIFFERENT PEOPLE IN MY CIRCLE I WAS READY TO BUY AND LONG BEHOLD A BUDDY OF MINES WHO IS A REALTOR PRESENTED ME THE DEAL AND LET ME MEET THE OWNER WE HAD A GREAT CONVERSATION AS HE TOURED THE PROPERTY WITH ME HE EXPLAINED HE HAD HIGHER OFFERS BUT BECAUSE HE SEE IM A YOUNG GUY DOING THE RIGHT THING HE REALLY WANTED TO SELL IT TO ME AND THE REST IS HISTORY !

.: I haven't really noticed any change at all in my market except minor changes to the standard contracts (minor language changes in contract to buy and sell, listing agreement, and buyer's agency agreement). 

Many hard money lenders will offer the best terms once you get 5 "completions" or "exits" from hard money loans (sell the property or refinance out). 

Quote from @James Wise: The term "cross selling" is used when you sell related products.

If there's equity maybe selling and restarting would be ideal unless you can up income/cut down expenses