In the field of abstracting integrity and fair dealing have become a thing of the past. All the VM's care about is how cheaply it can be done and how fast it can be done. Don't annoy them  about payment... they will get to it when they can. Just hold your water. Unfortunately this is what the field has become.

If you are going to extend large amounts of credit you have to be prepared to litigate a collection action. That means immediately before they dissipate the funds available to pay you. It means attaching or garnishing their property up front through a prejudgment remedy if the forum state permits it in order to assure payment of your claim.

If you are not prepared to litigate it is a matter of cutting your losses by limiting the amount of credit you extend to an acceptable loss. However, if this is part of your business model there really should be no complaining about the loss...it is just part of doing business. It is not a model I would recommend, but reasonable minds could differ.

In response to your question the "Inc." or "LLC" after a company's name is a warning that their liability is limited. Proceed at your own risk. If they are not organized as a corporation or LLC their are more options open. Liability attaches to the person in the case of a sole proprietorship. If they fail to identify themselves as an 'Inc." or LLC the person who signs the order is personally liable even if the company is properly organized because he is acting as an agent for an undisclosed principal.

In the case of a partnership personal liability depends on whether it is a limited partnership or general partnership. In a limited partnership liability is usually limited to the general partner with the managerial authority, but the limited partners are treated as investors liable only to the extent of their investment. Although there are exceptions which may be created by nature of the business dealings and the certificate filed with the Secretary of State.

In Connecticut partners in a general partnership are personally liable for claims against the partnership. Both the partnership and general partners are named as defendants in the suit. The judgment is satisfied first from partnership assets and then from the personal assets of the general partners.