The description in the book describes touching the right hand in front of the left foot while the right leg goes up, then says to repeat it with the left hand going down, and that you've completed one rep when you've done that. Then, it says to switch legs. So, when doing ladders (1 rep, then 2 reps, then 3 reps, etc), is one to do the right leg twice as one rep, then do left twice, right twice as the second two reps, and so on? Or is "one rep" supposed to be twice on the right and twice on the left?

I would consult his website, but [the forum](https://www.marklauren.com/forum/) seems to perpetually be down.
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Do not regret this break from your weightlifting and take the opportunity to become an even better weightlifter.

The trainers I have had, most often has used about half of the workout for yoga exercises to improve flexibility, range, mobility and core strength.
Exercises like over-the-head-squats demands extremely high flexibility.

You can highly improve quality of your squats by doing air squats in front of a mirror.

You can improve your core strength and stability far beyond what you think is possible just by doing functional training and calisthenics - without any equipment.

If you can afford a little for a smaller device, I will definitely recommend you a cheap suspension-trainer aka TRX (cheap ones are as good as the expensive ones), which you easily can attach to a door, and sliding exercises like this: <http://www.6-directions.com/>
You can just use floor-cloths for sliding exercises. I use to do so.

If you dare to try advanced exercises, Switch ball can take your weightlifting to the next level, but I recommends proper instructions.

If you have room for more than that, then get inspiration from crossfit and use sandbags (or water bags), tires, logs, etc. as weights.
Lifting>family

but really, you might be able to find a place to do chinups in a park or on a tree or something, it's one of the best exercises to do. Maybe you can buy a metal bar from a hardware store and make a chinup station yourself. Dips are also great. Other than that you can start a running routine.