I’m thinking of letting him sign a six month lease, keeping the option open to alter the lease should him and the other tenant not get along.

This would be considered an alteration to the property and this is not allowed in my lease. 

He is ready to sell because he has two houses, which translates to 2 mortgages.

FNMA has a 10 day period to conduct inspections in their addendum that cannot be altered so that was not a factor

Facebook Ads and Google Ad words possibly.I think there is phone systems where you can have voicemail's that prospective sellers leave and it translates to an email.

@Sid LangleyHi SidI would not alter the language to your lease.  

*Assuming an all cash purchase and does not include debt services* If Leshon got the purchase price down even more the cap rate would raise as well.Depending on terms, the 3 year hard money loan would alter the cap rate.

Me, about a year ago*Furiously using Google Translate to convert German tax returns into English as quickly as possible

That 22% revenue decline will translate to about a 60% decline in net profit if the trend continues. 

In regards to your question you are completely able to transfer your LLC to additional service, however you may need to next time you register your LLC with the state alter classifications.