Even if you like a certain individual, you'll want to talk to others just in case the others have a certain skillset that you need. 

Don’t think so, each property is treated individually. 

Pull the band-aid!

I don't know the individual you mentioned for possibly mentoring you, but these are some basics to find out from them before you put your hard earned money into a mentor."

I would go for individual awnings, no need for an entire long covering.

Understand that there are two different kinds of "private" "lenders" ...The first are as you're probably thinking: individuals in the business lending out their own funds on hard-money terms.The second are lesser known / understood: people you already know - friends, family, neighbors, etc. - who would be willing to invest in your deals for a return on their money.

Any suggestions or trustworthy individuals?

You are very correct about them being jointly and individually liable for the balance of the lease.So, for me, I would just do a background check to make sure they aren't a felon etc.

I am also trying to evict unauthorized tenants and it's taking much longer than 6 months these days, the tenants get free legal aid and they pull out all the tricks and lies to delay.

I believe in the band aid approach over small increases that take a long time.