What can I do to help them or how can I advertise it my self any advise I can get to get someone in the other unit would be great 

I was advised that for owning a single property, isn't cost effective to have it in an LLC.- Worried that, should I move to an LLC, my mortgage may be called to be paid in full by my company- Does this disqualify me from a 1031 in the future?

If you are working directly with sellers, my best piece of advise would be to find out what they need, generally there is a pain point or some sort of distress either in the sellers personal life or with the house itself.

Is it advisable to purchase home warranties on rentals? 

At least that's the advice I got from my CPA and also from the Cost Seg consultant that I worked with so I'll of course advise that you get your own advice!

They can assess existing agreements, advise on legal implications, and assist in drafting or reviewing necessary documents.

Recently, it was determined the building where the underground parking garage is (which is separate from the condo building) had structural integrity issues and people were advised to vacate.

@Ran Fridman it's highly likely if you talk to a tax professional that they will advise against a cash-out refinance before you sell your property for an exchange.

My conversation with you on this topic is over.Where I agree with you is that it would indeed be more helpful if I could advise the OP what to do.

You need to be in real estate doing deals for about 5 years before I would feel comfortable advising someone.