I've helped many investors from simple advice over coffee to helping them through an entire investment.

Collin and Michael both gave excellent advice.

Hi BiggerPockets community,I’m just starting out on my real estate journey and could use some advice!

The below is not legal advice and you should hire a lawyer with past subject to experience. 

My name is Anthony and I am currently a full-time healthcare professional. 

Were the installers skilled and professional?

Look for professionals who understand the unique needs of real estate investors.

Any advice for me or lessons learned?

Keep learning and leaning on your network for advice and connections. 

Then do a thorough research on tenant applicants (note: leaving this to a PM may be hazardous to your financial health) and choose the one that is most “stable” with the best potential for long term tenancy.This advice is contrary to maximization of rental income, but IMO will reduce expenses of tenant turnover, property damage, property management fees so much that the difference in bottom line income will be quite small.