is there a person I can have set up calculations for me?   

Even though the ONLY way that a tax sale can be reversed is if the entity or person that lost the property can prove that the tax collector missed the statutory public notification laws.. ( ask me how i know this one LOL ).. 

Otherwise, this doesn't seem like a big redflag except I would make sure you clarify that rent is still due from both parties and that if one person isn't paying their portion of the rent then all persons on the lease are responsible for any uncollected payments. 

I personally find that the online groups get me access to more people.

This means that you will probably need to pay registration and filing fees in at least 2 states if you don’t buy CA property as a CA resident.Any lawsuits should be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced, some debate as to SMLLC).

He is definitely a person/business that we are trying to model in the general contracting space here in Chicago. 

you can challenge the value with an accountant, appraiser, etc most markets have a person who charges a flat fee to lower it. in Columbus Ohio most of the people that do this have a guarantee to lower it or it's like half the fee 

For my personal portfolio I want to look back 10 years from now and be happy with the locations I decided to buy in. 

I found the wear and tear and guests that wanted to use this as a 6 person were not what I was targeting.  

Trusting someone shows you are an honest person.