Here is a link that should be helpful
http://www.mdspca.org/spay.html
Like I said, I prefer laser but with rescues it isn't feasible. They are all spayed and neutered the conventional way and we rarely have any complications from it. If you are looking for inexpensive options, there are plenty out there that don't include the laser procedure and some that may--here is another list for you.
MARYLAND
Montgomery County Humane Society
Rockville, MD
301-279-1823
301-279-6999
Offers discounts at many veterinary clinics in the area. Call for information
Prince George's County SPCA/Humane Society
Forestville, MD
301-464-9063
web site
Call here to learn about various kinds of assistance and clinics for low cost s/n.
Human Society of Charles County
71 Industrial Park Drive
Waldorf, MD 20604
301-645-8181
Low cost s/n for pets of people with low income. Call for details.
Frederick County Humane Society
1832 Rosemont Avenue
Frederick, MD 21702
301-694-1545
Low cost spay/neuter for pets.
The Lucky Ones
37725 Traveled Lane
Charlotte Hall, MD
301-884-2850
web site
Low cost spay/neuter clinic.
Montgomery County SPCA
PO Box 637
Gaithersburg, MD 20880
301-948-4266
Animal Welfare Society of Howard County
8556 Davis Road
Columbia, MD 21045
410-465-4350
Low cost spay/neuter clinic as well as low cost vaccinations at time of surgery or at weekly vaccine clinic.
Humane Society of Baltimore County
1601 Nicodemus Road
Reisterstown, MD 21136
410-833-4480 or 410-833-8848
Animal Advocates of Howard County
PO Box 1403
Ellicott City, MD 21041
410-880-2488
Offers information about low cost s/n in the area. Also, offers free s/n for pets of people with low income. Also, holds an annual male cat neuter-a-thon for very low price neutering.
Best of luck - usually these programs do not include the laser procedure but you can pay extra for it, which is what I did
