My question is: if I partner with someone and we buy two SFR LTR properties (let's say on the same 50/50 basis) and then 10 years later the partner wants out of the deal and to cash out his 50% participation (which normally would force a sell of the property or a buy out), can we sell one property and can I do a 1031 exchange my sold 50% to 1031 buy my partners other 50% in the second house and keeping it as an LTR, instead of having to sell both houses? 

Building in 6 months would be a tough job for me so I’ll just find another way to keep my money from the government.

I'll definitely keep you in mind once I'm ready to secure a real estate agent.  

The tenants are impatient and keep calling the county on small issues and the county keeps calling me. 

I use the time I have between mailers to keep marketing to the same houses.

If you have the 80% LTC loan, keep in mind that the lender will likely require anyone with a 20% or more interest (that's going to vary from program to program/lender to lender) to guaranty that loan along with you.

Some places may not have as much cash flow, but make up for it potential for equity growth, so keep that in mind.

What other things I have to keep in mind while talking to lendors?

i guess my question is , if i have a property manager, what should I keep track of 

This is usually Single Family or 2-4 unit BuildingsTo these sellers, I will always say: keep at least one unit vacant before selling if you can.Most Buyers are looking for a place to live, not an investment property - especially if you are selling a single family home.