I tend to put cows out to pasture on large meadows then send them for leather once every month, gets me around 800,000e every month x

Add a trough to your field for max leather

You could always try offering coverings for 500 equus per one. You can offer a maximum of 300 per day - which could potentially net you 15,000 equus if all of them are accepted.

Best to see what are the most/least popular breeds and start from there. Your stallion is more likely to be picked if he has 100 BLUP and is purebred.

Selling BMI you get for free from participating in promos via the item exchange. Some will sell for 300000e each.

Otherwise raising longhorn cows on large meadows with feed troughs yields 178,750e worth of leather every 30 days. With all 6 you will earn over 1 million equus every 30 days without much effort. Cows are not affected by meadow fertility so you can run these back to back without dropping yield. You get back the cost of the meadow and feed trough (build these in your workshop - it's much cheaper) in the first 30 days and after that it just costs you 6250e for the cows and the rest is profit. You can further increase profit by using the leather to make things in your workshope.

For now, concentrate on completing your apprentice objectives to get all features unlocked.

How can someone get more passes