I own equity in two different syndications, one managed by Brian Burke's (Hands-off Investor) Praxis and another is managed by Robert Kiyosaki's (Rich Dad Poor Dad) property manager MC Companies. 

I would only be worried because they may buy and move out.

Yes, in some markets big companies buying properties can have a noticeable affect, but it isn't likely to be forever or as pervasive as you think at this moment.

A good friend of mine and I took up an armature landscaping company last summer and I really enjoyed it.

I’d recommend trying to decide which route you prefer after the original hard money loan because the amount of time to actually create my last LLC was much longer than I expected despite the company that was doing it saying they had like a 2 day setup.

check with your insurance agent.. also federal law dictates that when your owner occupying your 1 to 4 unit you don't have to follow the normal fair housing laws.. you can pick and choose who you want to live in the units .. now some cities or states may have overriding rules regarding this.. but federal law is clear.. on owner occ 1 to 4.. your exempt from fair housing.so you can have a dog and you could restrict dogs for others.there is a well known list of aggressive breeds that insurance companies wont insure.. this is easy information to get.

If you decide to move forward with the HELOC on the investment property, please note that it can be challenging to get a HELOC on an investment property.

You will hear many horror stories so my two cents is to find that company who's looking to your mutual success & respond to you in a timely manner. 

IMHO, you should at least break even (depending on your state) on your real estate and if you don't then don't move forward.  

Tenant is moving out of paid off property in August.