For all I know he could be 100% right but I'm not sure how that marries to previous philosophies on real estate investing.  

Especially the ones that go into long term "buy&hold" contracts and have to practically "marry" a partner for at least 7 to 10 years!

It will have better resale appeal.Can't help with financing advice but do advise you to have a solid pre nup in place before you marry.

If she has lived in it for 2 out of the previous 5 years before sale she will get to take the first $250 ($500K if married) in profit tax free.  

@Qi Ming Chen, In a 1031 exchange a taxpayer sells a property and is expected to purchase new investment property as the same tax payer.  

If you can access such a person, a mentor who is willing to mentor you in return for a part of the deal may be the best option, although, again, you are now married to this person, so you want to make sure that the fit is good.  

This allowed me pay off the debt in 9 months but then it has also fueled incredible portfolio growth AND its made income qualification a non issue for me in getting to the 10 loans. c) I am now married so even after we close end of the month and get to 10 mortgages I will still be able to buy 10 more in my wifes name so now I can do 20 rather than even being limited to 10. 

in some markets wholesaling is a total dead end.. you would probably be much better served to get your real estate license.. the MLS has thousands of motivated sellers on it.. and if you have motivated buyers.. you marry the two and make your commission... much much easier and fulfilling and profitable and something you can do for a lifetime and if your any good at it ( which many are not to be fair)  then it can be quite rewarding financially to down right big money business.

As others have said, since it's your primary residence you can exclude up to $250k of capital gain if you're single, or $500k if you're married filing jointly, so selling would likely net you a good chunk of tax-free cash.

If you are married and file a joint return, the tax-free amount doubles to $500,000.