Jasper, Hello & Welcome,

First, sorry you lost your mom.

Your plant is Sygonium...It's common name is Arrowhead Vine.

Your Syngonium looks good. Very healthy.

When was the last time it was repotted? If it's been in the same pot and soil since 2007, it's time for re-potting, or at the minimum, fresh soil.
Actually, if you're thinking of re-potting, I'd wait until late winter or spring.
Check roots. If they're filling pot, up conatiner size.

How much light is it getting? Your Syngonium looks fine where it's located, but a little brighter light, 'not summer direct sun,' wouldn't hurt.

If you decide to prune, root cuttings like you did with the smaller Sygonium.

BTW, Syngoniums look good hanging, but can also be grown upright..It'd need staking.
Since you have two plants, why not keep the older Syngonium hanging, and stake the smaller plant?

Obviously, you're worried you'll lose the Syngonium, and it never hurts taking cuttings, but you don't want too many either.

You have two, healthy plants...if your office gets enough light, proper temps/etc during winter, leave at work.
Since you have two, why not keep one at the office, and take the other home?

Good luck, Toni

Wow, unless I'm mistaken you have something really cool and unusual, that I've never seen posted here before. Syngonium in a pot with mature leaves. Do some of the leaves have 3 sections? I'm not 100% sure from the pic.

Toni,
great info and suggestions.

The plant situated by a west facing window. Its filtered sun light with the window blinds.

The plant is in the original soil and pot from my Mom's house. So I guess new soil is in order. Any suggestions for potting soil? I have no idea what my Mom used in the pot. I could take some pics if you think that would help?

purpleinopp,
I'm glad you asked the question because I didn't realize the plant have two different leaves. I took some close-up pics.

Thanks again.

jasper

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Yes! It's fantastic, awesome, superb! If that were my plant, and it was OK to continue growing unmolested, that's exactly what I would do - nothing. If it ain't broke, don't fix it. Where did it live last winter?

If absolutely necessary to trim for some reason, understandable. If it's not possible to leave it as-is, I would LOVE to have a couple of the pieces you would trim off, at my expense or in trade. Your GW settings prevent me from emailing you. If you would be open to discussing it, please send one to me and type your email address in the body of the message so I will be able to respond.

Jasper.

Did you water before snapping pics?

Soil looks like Miracle Gro.

Since your Syngonium is doing well, like Purple stated, "if it's not broken, don't fix it."
I'm a firm believer in the phrase.

I was going to suggest adding fresh soil on top 'until the plant needs re-potting,' but soil already reaches the rim. More would cause a huge mess when watering.

Indirect light from your obstructed west window is working, so no need to change, unless you have your heart set on bringing it home.

Hi Purp...Toni