The biggest mistake new investors make is to walk a property, maybe explain in general terms what they want and then let the contractor come up with the SoW.For a bedroom this could be:- replace carpet- repair closet dooror- remove carpet- remove curtains, nails and screws- replace closet doors, entry door SKU#- replace window SKU#- refinish hardwood floors 144 sqft, clear/oil-based- prep and paint all woodwork- patch walls, texture, paint walls eggshell white clay, ceiling flat white- replace light fixture SKU#, replace lightswitch w decora/white, replace 3 outlets&covers- install blinds SKU#Obviously, the cost would be quite different.

Since I'm the sole member of the LLC is there anything I need to be concerned about or consequences if I make a mistake? 

Then, if you believe he made a mistake, come back here for a second opinion.Just one comment: you cannot carry anything back.

One mistake could extend the tenant's stay for months without any income, not to mention the stress it could cause.

@Andrea LeeRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

You can hear real-world examples of how others have built their investment portfolio and (hopefully) learn to avoid their mistakes.4.

@Fernando CarloIn our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

Study landlord basics, especially on what to include in your lease (going forward you will ALWAYS have a written lease).(2.5 Learn from mistakes and don't repeat them.)

The forums are full of self-managing landlords who make little mistakes that turn into big mistakes that cost them years of cash flow (or more).If you want to be a DIY landlord, I recommend books, blogs, classes, or other resources to educate yourself quickly.

It’s a reminder that in real estate, continuous learning and valuing experienced advice can save a lot of costly mistakes.